RARE Vintage DuPont HVAC Freon Automobile Advertising Sign Pam Bubble Clock 15\" For Sale

Incredibly rare Dupont Pam original clock. Clock does light up. Motor runs, but for some reason the hand turns counter clockwise. Probably a simple wiring switch, but we are not experts on these. It does have some typical wear for an item this age. The ring has some rust and there are some areas of paint loss on the glass. It takes a smaller refrigerator lightbulb. We would suggest using an LED one as it would not heat up as much and keep the glass in better condition. (NOTE lightbulb not included as they break too easily).
This would make a fantastic display piece. This may be a One-of-a-Kind, especially with the HVAC/Freon content.
There is on this sale, so offer freely.