![Sold at Auction: EINSTEIN ON UNIFIED FIELD THEORY Autograph Letter Initialed ('A.E.'), in German, to longtime assistant Ernst Gabor Straus on compatibility within the Unified Field Theory and with a series of Sold at Auction: EINSTEIN ON UNIFIED FIELD THEORY Autograph Letter Initialed ('A.E.'), in German, to longtime assistant Ernst Gabor Straus on compatibility within the Unified Field Theory and with a series of](https://image.invaluable.com/housePhotos/Bonhams/19/733819/H22141-L306040824.jpg)
Sold at Auction: EINSTEIN ON UNIFIED FIELD THEORY Autograph Letter Initialed ('A.E.'), in German, to longtime assistant Ernst Gabor Straus on compatibility within the Unified Field Theory and with a series of
![Albert Einstein Autograph Letter Signed on Unified Field Theory with Equations (including his favorite equation “Rik =0”) for sale at auction on 23rd September | Bidsquare Albert Einstein Autograph Letter Signed on Unified Field Theory with Equations (including his favorite equation “Rik =0”) for sale at auction on 23rd September | Bidsquare](https://s1.img.bidsquare.com/item/l/2250/22501793.jpeg?t=1QzdeF)
Albert Einstein Autograph Letter Signed on Unified Field Theory with Equations (including his favorite equation “Rik =0”) for sale at auction on 23rd September | Bidsquare
![Feeling our way': a densely scientific letter, including an equation, Albert Einstein. 1945 | Christie's Feeling our way': a densely scientific letter, including an equation, Albert Einstein. 1945 | Christie's](https://www.christies.com/img/LotImages/2020/CKS/2020_CKS_18958_0024_000(feeling_our_way_a_densely_scientific_letter_including_an_equation_albe053338).jpg?mode=max)
Feeling our way': a densely scientific letter, including an equation, Albert Einstein. 1945 | Christie's
![A. Einstein. Autograph letter signed, to the mathematician E.G. Straus, with three equations [spring 1945?] | Important Manuscripts, Continental Books and Music | Books & Manuscripts | Sotheby's A. Einstein. Autograph letter signed, to the mathematician E.G. Straus, with three equations [spring 1945?] | Important Manuscripts, Continental Books and Music | Books & Manuscripts | Sotheby's](https://sothebys-md.brightspotcdn.com/58/9d/261f48ec4e1b9e51c8f42c3fda5b/l19406-bdh6p-1.jpg)
A. Einstein. Autograph letter signed, to the mathematician E.G. Straus, with three equations [spring 1945?] | Important Manuscripts, Continental Books and Music | Books & Manuscripts | Sotheby's
![The Influence of the Expansion of Space on the Gravitation Fields Surrounding the Individual Stars. WITH: Corrections and Additional Remarks to Our Paper … Offprints from: Reviews of Modern Physics, vols. 17, no. 2/3, The Influence of the Expansion of Space on the Gravitation Fields Surrounding the Individual Stars. WITH: Corrections and Additional Remarks to Our Paper … Offprints from: Reviews of Modern Physics, vols. 17, no. 2/3,](https://sophiararebooks.cdn.bibliopolis.com/pictures/5054a.jpg?auto=webp&v=1597308271)