Apollo Records (1921)

Rialto Records was a record label based in Chicago, Illinois in the 1920s. It was owned by the Rialto Music House (330 S State St), sold at their stores at promotional prices. The records themselves were pressed by Marsh Recording Laboratories, Inc. (Suite 625 Kimball Building, 306 South Wabash Avenue, Chicago, Illinois).

The most famous record they produced was the only release known of Jelly Roll Morton's unaccompanied recording of "London Blues," made in 1924, which was un-numbered.

The earliest Apollo Records was a short lived subsidiary of Rialto Records in about 1921, based in the US.

...
Wikipedia