Tetragrammaton Records

Tetragrammaton Records was an American record label founded in 1968 by music industry executives Roy Silver, Bruce Post Campbell, Marvin Deane, and comedian Bill Cosby. Silver, at the time, was also Cosby's manager. The term "Tetragrammaton" refers to the Hebrew name of God considered by some to be unspeakable (YHWH, or "Yahweh", translated as "Jehovah" in English). The label's most successful act was rock band Deep Purple.