you change in silver dollars everywhere you went. to eat gift shop, and stores. The idea was you would in turn put them in machines. They were so heavy in your pockets you hated getting them in change. I do remember at the old Fremont casino, playing black Jack, srtarting with 20 silver dollars I got up to 5 racks. Yes, thats 500 silver dollars, at a 1.00 table. Biggest bet was 5 dollars. Hottest run I ever had. This was in 1962-3. I have so many great times in old Vegas. Just wish I could go back for a few day's.