Jim, I have had dozens of different ones. Greg is right, they put out many of each. A while back I offered 6 of them on this board if chippers sent me postage. I had about 200 at that time. I have 6 or 7 different ones at this time. I will send you 1 of each that I have left for $2 postage.

These are not to be confused with Chipco notched chips. Real sample chips with notches. I also have dozens of these. Chipco makes about 25 notched versions of each real chip and the salesmen use them for samples. I think I have 1 dupe notched from Colorado Central station.

Chipco also makes some real chips on one side, and advertising on the back. These are also notched. I think if it has real artwork on one side, it has to be notched.

You very seldom see high denominations of notched chips.
Chipco is the only manfacturer that is very liberal with notched chips. I have a few Paulsons and only 2 Bud Jones