My machines are all on coin play. I just put all my quarters that I get from change at stores in a jar next to the machines. To me it makes the experience of winning free games more rewarding and allows me to save money for pinball purchases. Maybe you can ask Jack and Pinball sales for a copy of the original receipt sold to john041160. If a prospector buyer wants it? I personally would just care about the condition which looks fantastic. Great game and on my wishlist for the future GLWS!