Another question I have about these is why were there none of them in the Horseshoe hoard that has been pieced out little by little for the last 15 years. As I recall, the $1 in this series was pretty rare until someone found some (not a lot) and brought them to one of the conventions 20-25 years ago. Anyone else remember that? Back then it seemed that every convention, someone discovered and had for sale a new chip. One year it was $100 LV Hiltons, one year Bob Stupak Sinabars, another year Our Bar Pahrump.