RR Auction Home
Current Auction Is Open For Bidding
Bidding Closes Wednesday March 10
Home |Sitemap|Contact Us| Past Auctions  
 How to Bid   Register to Bid   Auctions   Consign   About Us   Featured Lots 

Item 2062 - Louis Breguet Helicopter Wing System Patent Lithograph and Specification Document Catalog 588 (Jul 2020)

Back To Previous Page
(we are no longer accepting bids on this item)
Minimum Bid: $200.00
Sold Price: $302.50 (includes buyer's premium)


Original patent lithographs for Louis Breguet's improvements in an aircraft's rotating wing system, five pages, four 12.5 x 10.25 (linen-backed) and one 7 x 10.25 (not linen-backed), June 2, 1932. The diagrams feature multiple, highly detailed views of the improved rotary wing design. The top borders read: "373,771 Complete Specification." The lower borders feature the printed text: "Charles & Read Ltd. Photo Litho." The left borders read: "This Drawing is a reproduction of the Original on a reduced scale." Includes the printed British "Patent Specification" document, five pages on six sheets, which describes the invention as "improvements in the method and device for stabilizing, controlling and propelling flying machines having revolving supporting surfaces." The specification sheet bears a "U.S. Patent Office Library" ink stamp on the first page. In fine condition.

Terms and abbreviations used in our descriptions.


Click image to enlarge Click image to enlarge

Important Information

Tips For Consignors


For a complete list of auction beginning and ending dates, check our dates and deadlines page.