Sought-after handwritten scientific working manuscript by Albert Einstein, one page both sides, 8.5 x 11, no date, signed in the lower left corner, "A. Einstein." The working manuscript features numerous scientific formulae penned by Einstein, with just a handful of German words penned in his hand. Evidently penned in the course of his work to develop a Unified Field Theory, the manuscript is filled with capital lambdas, lowercase mus, Gs, Rs, and various other characters. It is unusual to have a signed page of Einstein's working mathematical notes—dashed off quickly in the course of his research, such papers would typically be discarded or filed away. The presence of Einstein’s signature, done in a different, browner ink, suggests that this manuscript was very likely signed as a courtesy for its ‘new’ owner at a later date. In fine condition, with multiple intersecting folds. Signed examples of Einstein's working scientific or mathematical notes are of exceptional rarity; the consignor notes that this example was presented to a family friend.
Beginning in the 1930s, Albert Einstein focused his scientific attention on developing a 'Unified Field Theory'—an attempt to unify his general theory of relativity with electromagnetism. Einstein continued this research in vain for the rest of his life, never achieving a satisfactory result.
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