This is an release "Golden Lightan," the leader from the Japanese anime series Ogon Senshi Gorudo Raitan (Golden Warrior Gold Lightan). When not transformed into a robot he measures approx. 61 mm x 39 mm x 25 mm. Under his feet it reads GB-37, Popy, 1981, Japan, and in Japanese: Chogokin, Crystal Cut, Lightan and Tatsunoko Productions.