Grand Prix Series K-177
Here is a relatively obscure Harmonica Rascals album. The Rascals were a group of harmonica players formed by Borrah Hinevitch in the 1920s that lasted into the 1950s. The group was a comedy/musical act (see video embedded below) and featured number of "little people" including Johnny Puleo (who, I think, is NOT pictured on this cover). Members also included Leo Diamond and Richard Hayman, both who went on to become even better know harmonica players.
The Rascals also made a number of motion picture shorts between 1932 and 1942.
I couldn't date this album. A guess would be late 50s. There is no indication on the cover who the members are in this version of the group.