H. O. Gemar's 1920 Talking Machine Business

A new business on Sutton's north side in 1920 was H. O. Gemar's store offering the "New Comfort" Talking Machines and OKEH Records.

From Wikipedia, the entry for Okeh records tells us:

Okeh Records is an American record label founded by the Otto Heinemann Phonograph Corporation, a phonograph supplier established in 1916,^[1] which branched out into phonograph records in 1918.^[2] The name was spelled "OkeH" from the initials of Otto K. E. Heinemann but later changed to "OKeh". Since 1926, Okeh has been a subsidiary of Columbia Records, a subsidiary of Sony Music. Okeh is a Jazz imprint distributed by Sony Masterworks, a specialty label of Columbia.