OJ 9/34, [14] Handwritten letter from Cube to Schenker, dated October 4, 1928

Cube acknowledges OJ 5/7a, [18] and [19], and comments; reports on his own recent activities and plans, and on events in the Conservatory, on a forthcoming Schubert festival, and Radio Vienna. He is about to return the Hammer etching.

Diary entry by Schenker for 21 March 1931