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Albert Einstein

Currency:USD Category:Collectibles / Autographs Start Price:NA Estimated At:400.00 - 600.00 USD
Albert Einstein

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Auction Date:2016 Mar 09 @ 18:00 (UTC-5 : 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
Rare unsigned book: Zur Einheitlichen Feldtheorie. First edition of one of Einstein’s last important scientific works. Berlin: Walter de Gruyter, 1929. Original orange printed wrappers, 7.25 x 10.25, 8 pages. In very good to fine condition. By 1929, Einstein had solved the main problems he had faced in writing field equations for his unified field theory; this ‘united field’ theory would be a generalization of his gravitational theory, including all electromagnetic phenomena.