LSE4311049 System to be awakened in music using a wake-up and a phonograph. in ??s??? Syst??me D???, March 1925. by French School, (20th century); Private Collection; (add.info.: System to be awakened in music using a wake-up and a phonograph. in ??s??? Syst??me D???, March 1925.); Photo ?? Leonard de Selva.