Groove Merchant was a “1970s label founded by A&R man/producer Sonny Lester after leaving United Artists Records … that was known mostly for releasing mostly funky jazz recordings. Orignally pressed and distributed by the notorious budget label Pickwick between 1971 and 1976, its catalog is a sampling goldmine.” — Discogs
The first version of the GM label had no large “GROOVE MERCHANT” title. In this second version (1974–76) the company added Antique Olive in alternating colors. [cvinyl.com]