Sold For $491
*Includes Buyers Premium
American cryptologist (1889–1958) who founded and led the Black Chamber, the first peacetime cryptanalytic organization in the United States and a forerunner of the National Security Agency. Under Yardley, the Black Chamber broke Japanese diplomatic codes and were able to furnish American negotiators with significant information during the Washington Naval Conference of 1921–1922. Partly-printed DS, signed “Herbert Yardley,” one page, 5 x 3, August 12, 1943. United States Postal Service return receipt card, signed at the center in pencil by Yardley to confirm his receipt of a registered and insured parcel from Ashley T. Cole. Postmarked at Chevy Chase, Maryland, on August 12, 1943. In fine condition.
This item is Pre-Certified by PSA/DNA
Buy a third-party letter of authenticity for
(inquire for price)
*This item has been pre-certified by a trusted third-party authentication service, and by placing a bid on this item, you agree to accept the opinion of this authentication service. If you wish to have an opinion rendered by a different authenticator of your choosing, you must do so prior to your placing of any bid. RR Auction is not responsible for differing opinions submitted 30 days after the date of the sale.
