two and a half, two fifty cents, dos y media, 2.50, 250 and same denominations written differently. I have couple of hundreds already - they are mostly from cigar stores, groceries, bowling alleys, saloons, gas stations, to medical clinics and lots from general stores.

I am not sure but I think they are the precusors to the paper coupons and now the online coupons that you can redeem in the stores. I should say that there books or guides in the library documenting the historical epoch of this phenomenon.

They are unique group of collectibles the shapes varies from rounds to squares, triangles with holes in side the token and etc.

But I did not get into the history, photos and info of the sources yet.