I have spent almost 30 minutes on search engines trying to find a picture of a ceiling mounted, belt driven, money transport tube system like JC Penny had in Kingfisher. When I was a kid I was fascinated with that device. Mom would give the clerk the money and the clerk would put the bills inside a tube, hook it on the belt, and pull a wooden handled fob that would release the tube. Whoosh! the tube took off across the store and in a few minutes the tube would come whooshing back, crashing into the stopping mechanism where we were standing. The clerk would unhook and give mom her change and receipt. Looking back, this had to be pre cash register era and the belt was always running to all parts of the store. You could hear it like a slow sewing machine belt and clicking and clacking when the belt splice hit something. I was mesmerized.