From The Grenadier Wizards box set. This guy has an imp on his shoulder. In Advanced D&D, which was current when these minis came out, a Wizard could have one of 4 special familiar types: imp, quasit, pseudo-dragon, and brownie.
I sand blasted this and other wizards from the set in 1996 to repaint them. Never got around to repainting it until now. But because of the sandblasting, much of the detail here is painted rather than molded.