PhA/Ar 36, [1] Carbon copy of a typewritten letter from Anthony van Hoboken to Heinrich Schenker, dated September 15, 1930

Hoboken sends his scoring of a C. P. E. Bach harpsichord concerto for Schenker to check in connection with a planned new collected edition of the works of that composer.

Diary entry by Schenker for 19 February 1932