loading..

MAJOR GENERAL JOSEPH O. MAUBORGNE - AUTOGRAPHED SIGNED CHECK 05/08/1919 - HFSID 317462

GENERAL JOSEPH O. MAUBORGNE The army cryptographer signed this $65 check the year he invented the one-time pad. Check signed: "J. O. Mauborgne", 7¾x2¾. Washington, D.C., 1919 May 8. Check #343, drawn on the Riggs National Bank of Washington, D.C., payable to "J. M. Stein & Co.

Sale Price $187.00

Reg. $220.00

Condition: fine condition
PSA / JSA Authentication Guarantee
Free U.S. Shipping
Chat now or call 800-425-5379

GENERAL JOSEPH O. MAUBORGNE
The army cryptographer signed this $65 check the year he invented the one-time pad.
Check signed: "J. O. Mauborgne", 7¾x2¾. Washington, D.C., 1919 May 8. Check #343, drawn on the Riggs National Bank of Washington, D.C., payable to "J. M. Stein & Co." for $65. Entirely filled out by Mauborgne. Joseph Oswald Mauborgne (1881-1971) joined the US Army in 1903, and attended the Army Signal School at Fort Leavenworth (1909-1910). In 1912, Mauborgne installed the first radio on an airplane, with which future Air Force commander Henry "Hap" Arnold sent the first radio message from the air to Mauborgne on the ground. Two years later, Mauborgne, this time aloft, conducted the first two-way radio communication with a ground station (December 16, 1914). That same year, he found a solution to the Playfair cypher (a substitution cypher using a pair of letters, not just one). In 1919, Mauborgne and Gilbert Vernon of Bell Laboratories invented the one-time pad, a code technique which still cannot be broken if used properly. As Chief of Signal (1939-1941), Mauborgne pressed the first mass production of radar. He retired on September 30, 1941, less than 6 weeks before Pearl Harbor. He is enshrined in the Military Intelligence Hall of Fame. Perforation marks. Creased from folds. Lightly toned. Otherwise, fine condition.

This website image may contain our company watermark. The actual item does not contain this watermark

See more listings from these signers
Make an offer today and get a quick response
Check your account for the status.

Following offer submission users will be contacted at their account email address within 48 hours. Our response will be to accept your offer, decline your offer or send you a final counteroffer. All offers can be viewed from within the "Document Offers" area of your HistoryForSale account. Please review the Make Offer Terms prior to making an offer.

If you have not received an offer acceptance or counter-offer email within 24-hours please check your spam/junk email folder.

 

World-Wide Shipping

Fast FedEx and USPS shipping

Authenticity Guaranteed

COA with every purchase

Questions Answered 24/7

Contact us day or night

Submit Offers

Get a quick response