" /> EINSTEIN, Albert. Autograph manuscript, comprising a summary of his paper with Walther Mayer on Unified Field Theory based on Teleparallism, [Berlin, 1931]. <I>1 full page, folio, neatly headed "Feldgleichungen" at top of the page, a slight fold separation mended, de-acidified and conserved and in a conservation mat; quarter black morocco clamshell case.</I> | Christie's