[oaks1912]

Brian... I checked my biscuit set and I think you're on to something. Of the 24 cards you list as being available in gray, 23 of mine are. The lone fly in the ointment is Mohler, San Francisco where mine is green. I think it's more than possible that the 24 cards were printed in gray, and perhaps later printed in green (or vice versa). I agree with your sheet of 24 theory as well. Hopefully others will compare their sets, including a few lurking 'non-posters' that you & I know. These individuals are welcome to forward their data to me where it can be posted, therefore preserving their privacy.