I thought I did not have any of these but just went through my new aquisitions from the last 3 months (cataloged but not in computer data base yet) and I do have a pair. Unfortunetly I do not remember where I got them (I do know they did not cost me much as I usualy do not bid much on Red Nevada dice unless they are somthing special, it is posible I picked them up in a trade?). Canceled with a vice punch, they have thinner spots than most acetate dice so might be older but not sure.