This is the die stamp used to produce the Yo-Yo Man logo side of the first release of the Hummingbird Smother's Brothers Yo-Yo Man Yo-Yo. The first release had a circular logo around the entire graphic, and did NOT say "Hummingbird" in the logo. The logo is etched on the plate in reverse. In this case gold foil was impressed onto the yo-yo half with the plate.
