Superior matte-finish 6.25 x 8.5 portrait of Albert Einstein in near-profile by Lotte Jacobi, affixed to its original 12 x 16.5 mount, beautifully signed on the mount in fountain pen, "Albert Einstein, 10.X.30." The reverse is stamped by Jacobi's studio, "Atelier Jacobi: Charlottenburg, Joachimsthaler-Str. 5, Tel. Bismarck 5216." In very good to fine condition, with light silvering to the perimeter of the photo, corners of the photo curling slightly from the mount, and toning and minor damage to the edges of the mount which could be easily matted out if so desired. This portrait was captured by influential German-American photographer Lotte Jacobi quite early in her esteemed career; she had joined the family's photo agency in Berlin in 1927. She is remembered for her portraits of leading figures of the arts and sciences, which often captured them at ease in informal settings. This is not only one of the finest Albert Einstein signed photographs extant, but an important photographic piece as well.