I can say I have a LOT of them [g]. Easily found in antique shops and flea markets these days.

If the carousel is solid hardwood and undamaged, it could be worth $50-60, but again, there are a lot of them available so no particular value as an antique. If the carousel were marked with the name of a riverboat or club (unlikely), you would have something else all together.

RobertE posts on this bb and he frequently sells both antique chips and chip racks. Possibly he will respond to your query.