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William Penney

Currency:USD Category:Collectibles / Autographs Start Price:NA Estimated At:200.00 - 400.00 USD
William Penney

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Auction Date:2015 Nov 11 @ 18:00 (UTC-05:00 : EST/CDT)
Location:236 Commercial St., Suite 100, Boston, Massachusetts, 02109, United States
ALS - Autograph Letter Signed
ANS - Autograph Note Signed
AQS - Autograph Quotation Signed
AMQS - Autograph Musical Quotation Signed
DS - Document Signed
FDC - First Day Cover
Inscribed - “Personalized”
ISP - Inscribed Signed Photograph
LS - Letter Signed
SP - Signed Photograph
TLS - Typed Letter Signed
English mathematical physicist (1909–1991) who worked on the Manhattan Project and carried out calculations to predict the damage effects generated by the blast wave of an atomic bomb. Penney recommended Hiroshima and Nagasaki as the targets of the US bombings on Japan during WWII. ALS signed “Penney,” one page, 5.25 x 7, Orchard House letterhead, September 21, 1977. In part: “Thank you for your letter telling me about the display you are organizing to help the friends of the old folks committee.” In fine condition. Accompanied by the original mailing envelope addressed in his own hand.