Multiple. Metronom with mounted black and white photograph.
With edition label of the "The New York Cultural Center", Collection 75, on the underside, there monogrammed and numbered 13/200 as well as typographically dated "1923-1975" and titled. With metal plate on front side, there once more dated and titled. 23 x 11,5 x 11,5 cm (9 x 4,5 x 4,5 in)
Released by Edition MAT, Paris. [SM].