I have a few of these O monogram chips for sale or trade. These are weird chips. When I first ran across this type of monogram chip I thought the inlay was painted on. Now I believe these are just newer chips. The inlay does appear to be paper. I think the cutter needed to be sharpened. The chips are “clay composite”, and are standard size.

I have green & blue chips for sale for $3.50 each delivered in the USA. Or, I’ll trade for other monograms I need.

Trying to spell your name in chips? I have lots of other inlaid monogram chips, including all the vowels.