Einstein, Albert (1879-1955) Die Grundlage der allgemeinen Relativitätstheorie, Signed.
Leipzig: Omnitypie-Ges, successors to Zechnall for Johann Ambrosius Barth, 1916 [i.e. 1919].
Octavo offprint, in original tan wrappers (chipped, wrappers and title page reinforced along inner edge); with Einstein's signature twice on front cover, and again on page thirty-three, all signatures in brown ink, all somewhat faded; ex libris Dr. Friedrich Brandstetter, with his bookplate on verso of front wrapper; back wrapper rather badly chipped and torn (repaired); title page formerly torn in half horizontally (repaired); bound in modern half calf and marbled paper boards, 9 1/8 x 5 3/4 in.
