The Great Garloo was a robot monster from the Marx toy company. In addition to looking cool, it stood about two feet tall, and had the (wired) remote-control capabilities of moving, bending over, and picking things up, making this a very popular toy in the early 1960s.
Garloo was green and scaly, with a ridge of spikes on its head. Its mouth was open, showing its teeth. It wore a leopard-print loin cloth and chains. Its posture was reminiscent of a Ray Harryhausen character.
The toy spawned a "Son of Garloo" wind-up version.
Forty years later, it is still a popular collector's item and collectors are always trying to find Great Garloo parts to complete their robot. Usually The Great Garloo is for sale on auction sites.
What's it worth? Take a look at this Great Garloo price guide: sold listings for a value indication.