First offprint of this late paper by Einstein about the Unified Field Theory, 1930

Albert Einstein: Die Kompatibilität der Feldgleichungen in der Einheitlichen Feldtheorie. [Consistency of the Field Equations in the Unified Field Theory]. Sonderausgabe [Offprint] aus den Sitzungsberichten der Preussischen Akademie der Wissenschaften, physikalisch-mathematischen Klasse, I (1930). Berlin: Verlag der Akademie der Wissenschaften (in commission at Georg Reimer [Reichsdruckerei]), 6th February 1930.

Imperial 8vo (25,4:18,2 cm). 8 pages. Letterpress on machine paper, in original publisher’s brochure on orange stock with black title printing.

First offprint in the original wrappers and new pagination, of this late paper by Einstein about the Unified Field Theory

Condition: Mint.

Reference: Boni-Russ-L. 195; Schilpp-Shields 239; Weil 169 (quotes the pagination of the first separate printing, p. 18-23)