Kopf (erstaunen). Um 1923. Etching in umbra, hand-made proof. Rosenbach 39. Monogrammed in the plate. With stamped artist's monogram "AJ". Signed and numbered by printer. From an edition of 50 copies. On firm laid paper by Rives. 15.8 x 11.9 cm (6.2 x 4.6 in). Sheet: 43,8 x 31,7 cm ( x 17,2 x 12,4 in). Limited edition, printed posthumously from the original plate by the art printshop Martin Kätelhön, Cologne in 2014. Released by Ernst Rathenau Kunsthandel und Verlag. [EH].