This is from an old computer system controller from the 70’s. It’s meant to be punched if needed in an emergency. Fun item. 1-5/8″ diameter and 1-5/8″tall.
This is from an old computer system controller from the 70’s. It’s meant to be punched if needed in an emergency. Fun item. 1-5/8″ diameter and 1-5/8″tall.