I have 28 of the type you show in my collection. Several are advertising or samples but most are casino issue.

There is also the other type Pro-Tec token made by Chipco and consisting of a metal slug with inlaid plastic centers. There are 20 or so different tokens of this type.

I did a display of color tokens at one of the Conventions about 8-9 years ago and there were enough to fill two cases. That included tokens from other manufacturers and some of the painted struck-tokens, of which there were only a few. There are many more now that artists are beginning to paint regular issue casino tokens (including a few in the far-east [g]).