Top 100 Computer History Auction Items

Lot #8011 Allan Alcorn: Pong 'Home Edition'

8011. Allan Alcorn: Pong 'Home Edition' Prototype/Design Mock-Up (Black Box)

Sold For: $270,910 (w/BP)

Estimate: $20,000+

Auction #632 - March 17, 2022

Closed

Lot #8043 Douglas Engelbart: X-Y Axis Mouse and

8043. Douglas Engelbart: X-Y Axis Mouse and Coding Keyset

Sold For: $178,936 (w/BP)

Estimate: $15,000+

Auction #660 - March 16, 2023

Closed

Lot #3147 Bill Gates Early Typed Letter Signed

3147. Bill Gates Early Typed Letter Signed (1978) - listing Apple, Atari, and RadioShack as companies that "sell our BASIC with their hardware"

Sold For: $75,821 (w/BP)

Estimate: $10,000+

Auction #690 - March 21, 2024

Closed

Lot #8054 Atari CX3000 Graduate Computer Keyboard

8054. Atari CX3000 Graduate Computer Keyboard Prototype

Sold For: $61,141 (w/BP)

Estimate: $1,500+

Auction #660 - March 16, 2023

Closed

Lot #8002 Douglas Engelbart: X-Y Axis Mouse and

8002. Douglas Engelbart: X-Y Axis Mouse and Coding Keyset

Sold For: $54,904 (w/BP)

Estimate: $30,000+

Auction #632 - March 17, 2022

Closed

Lot #8001 Douglas Engelbart: 'Skeleton' Early

8001. Douglas Engelbart: 'Skeleton' Early Mouse with X-Y Axis

Sold For: $45,935 (w/BP)

Estimate: $15,000+

Auction #632 - March 17, 2022

Closed

Lot #6157 ENIAC Original Section of the ‘Decade

6157. ENIAC Original Section of the ‘Decade Counter’ - Certified by Members of the United States Army's Ballistic Research Laboratory

Sold For: $40,514 (w/BP)

Estimate: $3,000+

Auction #724 - August 21, 2025

Closed

Lot #3159 Elon Musk Rare Signed SpaceX Business

3159. Elon Musk Rare Signed SpaceX Business Card - PSA GEM MT 10

Sold For: $39,238 (w/BP)

Estimate: $2,500+

Auction #690 - March 21, 2024

Closed

Lot #8015 Allan Alcorn: Original Space Race

8015. Allan Alcorn: Original Space Race Hand-Drawn Schematics (c. 1973)

Sold For: $37,999 (w/BP)

Estimate: $15,000+

Auction #632 - March 17, 2022

Closed

Lot #5088 Steve Jobs Filled Out and Signed 'Apple

5088. Steve Jobs Filled Out and Signed 'Apple Computer Company' Check to Elmar Electronics (July 16, 1976)

Sold For: $37,500 (w/BP)

Estimate: $25,000+

Auction #700 - September 28, 2024

Closed

Lot #3157 Google: Larry Page and Sergey Brin

3157. Google: Larry Page and Sergey Brin Signed Check for "21 Computers" - PSA GEM MINT 10

Sold For: $36,064 (w/BP)

Estimate: $1,000+

Auction #690 - March 21, 2024

Closed

6320. Twitter Inc. Official 'Bird Logo' Fascia Sign - An Iconic Fixture from the Company’s Market Square Headquarters in San Francisco

Sold For: $34,375 (w/BP)

Estimate: $40,000+

Auction #714 - March 20, 2025

Closed

Lot #6201 Google: Sergey Brin and Larry Page

6201. Google: Sergey Brin and Larry Page Signed Stock Certificate

Sold For: $29,500 (w/BP)

Estimate: $10,000+

Auction #734 - January 29, 2026

Closed

Lot #6161 Elon Musk: Futuredex Magazine from March

6161. Elon Musk: Futuredex Magazine from March 2003 - "PayPal Co-Founder Now Banks on Space" - CGC 6.5 (WHITE Pages)

Sold For: $26,808 (w/BP)

Estimate: $800+

Auction #734 - January 29, 2026

Closed

6290. MITS Altair 8800 Computer Prototype

Sold For: $25,005 (w/BP)

Estimate: $20,000+

Auction #714 - March 20, 2025

Closed

Lot #8014 Allan Alcorn: Atari Pong 'Home Edition'

8014. Allan Alcorn: Atari Pong 'Home Edition' Portable Prototype (Wooden Case)

Sold For: $25,000 (w/BP)

Estimate: $25,000+

Auction #632 - March 17, 2022

Closed

Lot #8045 Bill Gates Personally-Used TRS-80 Model

8045. Bill Gates Personally-Used TRS-80 Model 100 Computer with Autograph Note Signed

Sold For: $25,000 (w/BP)

Estimate: $20,000+

Auction #660 - March 16, 2023

Closed

Lot #8009 Allan Alcorn: Original Pong Schematics

8009. Allan Alcorn: Original Pong Schematics (c. 1972)

Sold For: $25,000 (w/BP)

Estimate: $30,000+

Auction #632 - March 17, 2022

Closed

Lot #8016 Allan Alcorn: Atari Space Race Original

8016. Allan Alcorn: Atari Space Race Original Prototype

Sold For: $24,370 (w/BP)

Estimate: $30,000+

Auction #632 - March 17, 2022

Closed

Lot #5090 Google: Larry Page and Sergey Brin

5090. Google: Larry Page and Sergey Brin Signed Check to King Star Computers - PSA MINT 9

Sold For: $21,250 (w/BP)

Estimate: $1,000+

Auction #700 - September 28, 2024

Closed

6171. MITS Altair 8800 Computer

Sold For: $16,079 (w/BP)

Estimate: $5,000+

Auction #734 - January 29, 2026

Closed

Lot #6168 UniCom Systems 141P Calculator,

6168. UniCom Systems 141P Calculator, Featuring an Intel 4004 - Intel's First Microprocessor

Sold For: $13,740 (w/BP)

Estimate: $10,000+

Auction #734 - January 29, 2026

Closed

Lot #6134 Douglas Engelbart: X-Y Axis Three-Button

6134. Douglas Engelbart: X-Y Axis Three-Button Mouse

Sold For: $13,728 (w/BP)

Estimate: $7,500+

Auction #724 - August 21, 2025

Closed

Lot #6170 MITS Altair 8800 Computers (2) with

6170. MITS Altair 8800 Computers (2) with Altair Disc Drives, Massive Document Archive, Manuals, and Advertisements - From the Collection of Jack Everson

Sold For: $12,915 (w/BP)

Estimate: $15,000+

Auction #734 - January 29, 2026

Closed

Lot #6160 Jensen Huang Twice-Signed NVIDIA GeForce

6160. Jensen Huang Twice-Signed NVIDIA GeForce RTX 5090 Founders Edition GPU

Sold For: $12,501 (w/BP)

Estimate: $10,000+

Auction #734 - January 29, 2026

Closed

Lot #6166 Bill Gates and Steve Ballmer Signed

6166. Bill Gates and Steve Ballmer Signed 'Multipert' License Agreement (October 29, 1982) - An Early Precursor to Microsoft Project

Sold For: $12,500 (w/BP)

Estimate: $20,000+

Auction #734 - January 29, 2026

Closed

Lot #5002 Allan Alcorn and Steve Wozniak:

5002. Allan Alcorn and Steve Wozniak: Tektronix 465 Oscilloscope Used to Design the Pong Video Game and the Apple II Computer

Sold For: $12,500 (w/BP)

Estimate: $5,000+

Auction #644 - August 18, 2022

Closed

Lot #4243 Jensen Huang Signed NVIDIA GeForce RTX

4243. Jensen Huang Signed NVIDIA GeForce RTX 4080 Graphics Card

Sold For: $11,003 (w/BP)

Estimate: $3,000+

Auction #698 - August 22, 2024

Closed

4263. Elon Musk Signed Photograph

Sold For: $10,664 (w/BP)

Estimate: $3,000+

Auction #698 - August 22, 2024

Closed

Lot #6165 Jeff Bezos Signed Amazon Kindle (First

6165. Jeff Bezos Signed Amazon Kindle (First Generation)

Sold For: $10,321 (w/BP)

Estimate: $10,000+

Auction #734 - January 29, 2026

Closed

Lot #8013 Allan Alcorn: Original Pong 'Home

8013. Allan Alcorn: Original Pong 'Home Edition' Chip Prototype

Sold For: $10,001 (w/BP)

Estimate: $8,000+

Auction #632 - March 17, 2022

Closed

Lot #3156 Google: Sergey Brin Signed Check for

3156. Google: Sergey Brin Signed Check for "Deposit on Computers" - PSA GEM MINT 10

Sold For: $9,525 (w/BP)

Estimate: $800+

Auction #690 - March 21, 2024

Closed

Lot #6133 Douglas Engelbart: Coding Keyset Input

6133. Douglas Engelbart: Coding Keyset Input Device

Sold For: $9,375 (w/BP)

Estimate: $7,500+

Auction #724 - August 21, 2025

Closed

Lot #4241 J. Presper Eckert Autograph Speech Draft

4241. J. Presper Eckert Autograph Speech Draft Archive: “Computers of the 70s / Yesterday, Today and Tomorrow in Computer Technology”

Sold For: $8,640 (w/BP)

Estimate: $3,000+

Auction #698 - August 22, 2024

Closed

Lot #8012 Allan Alcorn: Original Pong 'Home

8012. Allan Alcorn: Original Pong 'Home Edition' Prototype Chip Wafer

Sold For: $8,319 (w/BP)

Estimate: $6,000+

Auction #632 - March 17, 2022

Closed

Lot #8008 Gordon Moore: 'Cramming More Components

8008. Gordon Moore: 'Cramming More Components onto Integrated Circuits' (Moore's Law) in Electronics (April 19, 1965)

Sold For: $7,500 (w/BP)

Estimate: $6,000+

Auction #632 - March 17, 2022

Closed

Lot #5001 Allan Alcorn: Original Atari Pong 'Home

5001. Allan Alcorn: Original Atari Pong 'Home Edition' Chip Schematic

Sold For: $7,499 (w/BP)

Estimate: $5,000+

Auction #644 - August 18, 2022

Closed

8060. ANITA Mark VIII / MK 8 Calculator

Sold For: $7,463 (w/BP)

Estimate: $1,000+

Auction #632 - March 17, 2022

Closed

Lot #4285 Bill Gates Microsoft Corporate Campus

4285. Bill Gates Microsoft Corporate Campus Access Badge (c. 1994)

Sold For: $7,048 (w/BP)

Estimate: $6,000+

Auction #698 - August 22, 2024

Closed

Lot #4240 Google: Sergey Brin Signed Check for

4240. Google: Sergey Brin Signed Check for "Executive Photos" - PSA NM-MT 8

Sold For: $6,823 (w/BP)

Estimate: $800+

Auction #698 - August 22, 2024

Closed

Lot #8061 Early Commodore PET 2001 Series Personal

8061. Early Commodore PET 2001 Series Personal Computer, No. 77 of Initial 100 Unit Run

Sold For: $6,784 (w/BP)

Estimate: $3,000+

Auction #632 - March 17, 2022

Closed

Lot #8010 Allan Alcorn: Pong 'Andy Capp's Tavern'

8010. Allan Alcorn: Pong 'Andy Capp's Tavern' Quarter

Sold For: $6,710 (w/BP)

Estimate: $2,500+

Auction #632 - March 17, 2022

Closed

6143. Elon Musk Zip2 Business Card (1995)

Sold For: $6,380 (w/BP)

Estimate: $1,000+

Auction #724 - August 21, 2025

Closed

Lot #3142 Douglas Engelbart Coding Keyset

3142. Douglas Engelbart Coding Keyset Presented to a Fellow Researcher from SRI International

Sold For: $6,250 (w/BP)

Estimate: $5,000+

Auction #690 - March 21, 2024

Closed

Lot #6165 Early Commodore PET 2001 Series Personal

6165. Early Commodore PET 2001 Series Personal Computer, No. 34 of Initial 100 Unit Run

Sold For: $6,250 (w/BP)

Estimate: $5,000+

Auction #724 - August 21, 2025

Closed

Lot #6200 Early Commodore PET 2001 Series Personal

6200. Early Commodore PET 2001 Series Personal Computer, No. 34 of Initial 100 Unit Run

Sold For: $5,633 (w/BP)

Estimate: $5,000+

Auction #734 - January 29, 2026

Closed

Lot #6145 Google: Larry Page and Sergey Brin

6145. Google: Larry Page and Sergey Brin Signed Check

Sold For: $5,375 (w/BP)

Estimate: $1,000+

Auction #724 - August 21, 2025

Closed

Lot #6138 Douglas Engelbart and Ted Nelson Signed

6138. Douglas Engelbart and Ted Nelson Signed Book - What the Dormouse Said (Signed by 20+ Industry Figures and Computer Scientists)

Sold For: $5,120 (w/BP)

Estimate: $500+

Auction #724 - August 21, 2025

Closed

Lot #6276 Google: Sergey Brin Signed Check to

6276. Google: Sergey Brin Signed Check to Stanford University - PSA MINT 9

Sold For: $5,000 (w/BP)

Estimate: $1,000+

Auction #714 - March 20, 2025

Closed

Lot #6162 SWTPC 6800 Computer System with AC-30

6162. SWTPC 6800 Computer System with AC-30 Cassette Interface, Software, and Manuals

Sold For: $4,291 (w/BP)

Estimate: $2,000+

Auction #724 - August 21, 2025

Closed

Lot #6146 Google: Sergey Brin Signed Check to

6146. Google: Sergey Brin Signed Check to Budget Movers, Marking Google's Transition Into Its First Office Space

Sold For: $4,130 (w/BP)

Estimate: $800+

Auction #724 - August 21, 2025

Closed

Lot #6281 Bill Gates Signature on Facsimile

6281. Bill Gates Signature on Facsimile Business Card - PSA GEM MINT 10

Sold For: $4,038 (w/BP)

Estimate: $600+

Auction #714 - March 20, 2025

Closed

Lot #6167 IBM Personal Computer Early Production

6167. IBM Personal Computer Early Production Model (Rev. A, Serial No. #0111111), with IBM Monitor, Keyboard, Software, and Original Boxes

Sold For: $4,023 (w/BP)

Estimate: $2,000+

Auction #724 - August 21, 2025

Closed

Lot #8007 Vannevar Bush: 'As We May Think' in The

8007. Vannevar Bush: 'As We May Think' in The Atlantic (July 1945)

Sold For: $3,845 (w/BP)

Estimate: $800+

Auction #632 - March 17, 2022

Closed

Lot #6174 Processor Technology Sol-20 Terminal

6174. Processor Technology Sol-20 Terminal Computer and Helios II Disk Memory System

Sold For: $3,785 (w/BP)

Estimate: $3,500+

Auction #734 - January 29, 2026

Closed

8058. Pastoriza Personal Analog Computer

Sold For: $3,750 (w/BP)

Estimate: $3,000+

Auction #632 - March 17, 2022

Closed

Lot #6167 Bill Gates Signed ‘User’s Guide’ for

6167. Bill Gates Signed ‘User’s Guide’ for Microsoft Windows 1.0 - Obtained at the 1985 COMDEX Convention

Sold For: $3,750 (w/BP)

Estimate: $3,000+

Auction #734 - January 29, 2026

Closed

Lot #5000 Lee Felsenstein's Pennywhistle 103 Modem

5000. Lee Felsenstein's Pennywhistle 103 Modem Kit

Sold For: $3,750 (w/BP)

Estimate: $3,000+

Auction #644 - August 18, 2022

Closed

Lot #6185 Forethought: PowerPoint 1.0 Software Box

6185. Forethought: PowerPoint 1.0 Software Box (Unopened) with Forethought, Inc. Board Meeting Presentation (September 16, 1985) - "Next Steps for Forethought"

Sold For: $3,735 (w/BP)

Estimate: $2,000+

Auction #734 - January 29, 2026

Closed

6301. Elon Musk Signed Photograph

Sold For: $3,735 (w/BP)

Estimate: $1,000+

Auction #714 - March 20, 2025

Closed

Lot #6163 Google: Sergey Brin Signed Check for

6163. Google: Sergey Brin Signed Check for Squaw Valley Lift Tickets

Sold For: $3,675 (w/BP)

Estimate: $800+

Auction #734 - January 29, 2026

Closed

Lot #6188 Linus Write-Top Early Tablet Computer

6188. Linus Write-Top Early Tablet Computer (c. 1988)

Sold For: $3,614 (w/BP)

Estimate: $3,500+

Auction #734 - January 29, 2026

Closed

Lot #6141 Elon Musk Signed Tesla Model S Quick

6141. Elon Musk Signed Tesla Model S Quick Guide

Sold For: $3,434 (w/BP)

Estimate: $2,000+

Auction #724 - August 21, 2025

Closed

Lot #5003 Allan Alcorn: Atari Video Music - Model

5003. Allan Alcorn: Atari Video Music - Model C240 (Unopened)

Sold For: $3,126 (w/BP)

Estimate: $2,500+

Auction #644 - August 18, 2022

Closed

4258. Bill Gates Signature - PSA GEM MINT 10

Sold For: $3,125 (w/BP)

Estimate: $400+

Auction #698 - August 22, 2024

Closed

Lot #5052 Community Memory Developmental Hardware:

5052. Community Memory Developmental Hardware: North Star Floppy Drives, Controller Board, and Cables

Sold For: $3,119 (w/BP)

Estimate: $2,500+

Auction #644 - August 18, 2022

Closed

Lot #6148 Jeff Bezos Signed Magazine - Customers

6148. Jeff Bezos Signed Magazine - "Customers rule!"

Sold For: $3,033 (w/BP)

Estimate: $1,000+

Auction #724 - August 21, 2025

Closed

Lot #6297 Processor Technology Sol-20 Terminal

6297. Processor Technology Sol-20 Terminal Computer - The First Home Computer

Sold For: $2,960 (w/BP)

Estimate: $2,000+

Auction #714 - March 20, 2025

Closed

Lot #6175 Altair 8800b Microcomputer and ADM-3A

6175. Altair 8800b Microcomputer and ADM-3A Video Display Terminal

Sold For: $2,888 (w/BP)

Estimate: $2,000+

Auction #734 - January 29, 2026

Closed

6294. IMSAI 8080 Microcomputer

Sold For: $2,756 (w/BP)

Estimate: $2,000+

Auction #714 - March 20, 2025

Closed

8042. Douglas Engelbart: Augment Ephemera

Sold For: $2,668 (w/BP)

Estimate: $800+

Auction #660 - March 16, 2023

Closed

Lot #8046 Powersharing Series Archive: (70+)

8046. Powersharing Series Archive: (70+) Signed Documents

Sold For: $2,505 (w/BP)

Estimate: $2,000+

Auction #660 - March 16, 2023

Closed

Lot #6277 Google: Larry Page Signed Check for

6277. Google: Larry Page Signed Check for Patent Application - PSA MINT 9

Sold For: $2,505 (w/BP)

Estimate: $1,000+

Auction #714 - March 20, 2025

Closed

Lot #6147 Google: Larry Page Signed Check to

6147. Google: Larry Page Signed Check to Exodus, an Early Web Hosting/Data Center Provider

Sold For: $2,503 (w/BP)

Estimate: $800+

Auction #724 - August 21, 2025

Closed

Lot #3155 IBM Simon Personal Communicator - The

3155. IBM Simon Personal Communicator - The First True Smartphone

Sold For: $2,494 (w/BP)

Estimate: $500+

Auction #690 - March 21, 2024

Closed

Lot #6154 Byte Magazine Collection (40+), with

6154. Byte Magazine Collection (40+), with Early Foundational Issues (1975-1986)

Sold For: $2,381 (w/BP)

Estimate: $500+

Auction #724 - August 21, 2025

Closed

Lot #3158 Google: Larry Page Twice-Signed Check

3158. Google: Larry Page Twice-Signed Check from First Palo Alto Office - PSA MINT 9

Sold For: $2,330 (w/BP)

Estimate: $800+

Auction #690 - March 21, 2024

Closed

Lot #6156 Transistor Inventors: Shockley, Bardeen,

6156. Transistor Inventors: Shockley, Bardeen, and Brattain Signatures

Sold For: $2,276 (w/BP)

Estimate: $400+

Auction #724 - August 21, 2025

Closed

Lot #3145 Vannevar Bush: 'As We May Think' in The

3145. Vannevar Bush: 'As We May Think' in The Atlantic (July 1945)

Sold For: $2,170 (w/BP)

Estimate: $1,500+

Auction #690 - March 21, 2024

Closed

Lot #6181 Teleram T-3000 Portable Computer (c.

6181. Teleram T-3000 Portable Computer (c. 1983)

Sold For: $2,128 (w/BP)

Estimate: $2,500+

Auction #734 - January 29, 2026

Closed

Lot #6153 West Coast Computer Faire First (7)

6153. West Coast Computer Faire First (7) Conference Proceedings Books

Sold For: $2,126 (w/BP)

Estimate: $800+

Auction #724 - August 21, 2025

Closed

6163. PolyMorphic Systems Poly-88 Computer

Sold For: $2,020 (w/BP)

Estimate: $1,000+

Auction #724 - August 21, 2025

Closed

6172. IMSAI 8080 Microcomputers (2)

Sold For: $1,994 (w/BP)

Estimate: $2,000+

Auction #734 - January 29, 2026

Closed

Lot #3143 Douglas Engelbart: Three-Button ‘Mark

3143. Douglas Engelbart: Three-Button ‘Mark II’ Hawley X063X Mouse (Presented to a Fellow Researcher from SRI International)

Sold For: $1,880 (w/BP)

Estimate: $1,000+

Auction #690 - March 21, 2024

Closed

6176. Commodore KIM-1 Single-Board Computer

Sold For: $1,875 (w/BP)

Estimate: $1,500+

Auction #734 - January 29, 2026

Closed

Lot #6164 Google: Larry Page Signed Check to

6164. Google: Larry Page Signed Check to Pacific Bell

Sold For: $1,719 (w/BP)

Estimate: $800+

Auction #734 - January 29, 2026

Closed

6160. IMSAI 8080 Microcomputer

Sold For: $1,666 (w/BP)

Estimate: $2,000+

Auction #724 - August 21, 2025

Closed

8047. GRiDPad Convertible Model 2260

Sold For: $1,648 (w/BP)

Estimate: $1,500+

Auction #660 - March 16, 2023

Closed

Lot #6178 Vector Graphic 3 Computer with External

6178. Vector Graphic 3 Computer with External Floppy Disk Drive

Sold For: $1,516 (w/BP)

Estimate: $1,000+

Auction #734 - January 29, 2026

Closed

Lot #4239 Google: Larry Page Signed Check - PSA

4239. Google: Larry Page Signed Check - PSA NM-MT 8

Sold For: $1,500 (w/BP)

Estimate: $800+

Auction #698 - August 22, 2024

Closed

Lot #4251 Bill Gates and Paul Allen 1970 Lakeside

4251. Bill Gates and Paul Allen 1970 Lakeside School Yearbook

Sold For: $1,411 (w/BP)

Estimate: $500+

Auction #698 - August 22, 2024

Closed

Lot #6282 IBM DOS 1.0 and Microsoft Windows 1.0

6282. IBM DOS 1.0 and Microsoft Windows 1.0 Software

Sold For: $1,411 (w/BP)

Estimate: $200+

Auction #714 - March 20, 2025

Closed

Lot #6177 Northstar Horizon Computer with Software

6177. Northstar Horizon Computer with Software and Xerox Teleprinter

Sold For: $1,378 (w/BP)

Estimate: $2,000+

Auction #734 - January 29, 2026

Closed

Lot #6180 Digital VT180 'Robin' Computer Setup

6180. Digital VT180 'Robin' Computer Setup with Keyboard and Dual Floppy Disk Drive

Sold For: $1,305 (w/BP)

Estimate: $1,000+

Auction #734 - January 29, 2026

Closed

8064. Microsoft Stock Certificate

Sold For: $1,305 (w/BP)

Estimate: $500+

Auction #632 - March 17, 2022

Closed

Lot #6152 Altair 8800: Popular Electronics

6152. Altair 8800: Popular Electronics Magazine from January 1975 - CGC 5.0 (OFF-WHITE TO WHITE Pages)

Sold For: $1,251 (w/BP)

Estimate: $1,000+

Auction #724 - August 21, 2025

Closed

Lot #4244 Zenith Space-Commander 400 Television

4244. Zenith Space-Commander 400 Television Remote Control (1956)

Sold For: $1,251 (w/BP)

Estimate: $1,000+

Auction #698 - August 22, 2024

Closed

Lot #8063 IBM 1983 DemiDiskette 4-inch Floppy Disk

8063. IBM 1983 DemiDiskette 4-inch Floppy Disk Prototype

Sold For: $1,251 (w/BP)

Estimate: $1,000+

Auction #632 - March 17, 2022

Closed

Lot #6289 IBM Simon Personal Communicator - The

6289. IBM Simon Personal Communicator - The First True Smartphone

Sold For: $1,216 (w/BP)

Estimate: $500+

Auction #714 - March 20, 2025

Closed

6173. Brown's Computing Table (c. 1906)

Sold For: $1,165 (w/BP)

Estimate: $1,500+

Auction #724 - August 21, 2025

Closed