Viva-Tonal Grafonola Designer (Person) Unknown Manufacturer Unknown Manufactured for Columbia Phonograph Company Date 1940 - 1949 (circa)
78 rpm recording of Cavan O'Connor Designer (Person) Unknown Manufacturer Crystalate Manufacturing Company Manufactured for Rex Date 1933 - 1948 (circa)
His Master's Voice Pick- Up No II and Volume Control Designer (Person) Unknown Manufacturer His Master's Voice Date 1940 - 1949 (circa)