More likely a compact body hammer for getting into tight spaces.Thank you all. For some reason I thought it was for woodworking. Ive never seen a backing dolly on a stick before but I guess it must be.
Now you use a blower, a heat gun(carefully), or towels soaked in really hot water, and slowly squeeze with your hands or pull with a small suction cup.Yeah, that's a body hammer. Used to help remove dents in vehicles. That and a torch were all you needed for dings back when cars were made of more metal than plastic.

maybe plastic body cars arent so bad after all. Sounds much easier.Now you use a blower, a heat gun(carefully), or towels soaked in really hot water, and slowly squeeze with your hands or pull with a small suction cup.![]()

How’s that saying go; when you’re dumb as a box of hammers everything looks like a nail.. . . guy told me the hammer was for seating nails flush without leaving a mark or taking a risk of a punch slipping off and gouging the wood