I bought a Mills Black Cherry a little over a year or so from a guy outside of Gary Ind He said his dad bought it around 1950 from a bar that had a few machines in back room and had to sell since the heat was on them. It was so dirty and the lock was drilled out and brass all over inside and escalator wasn't working it took me about a week to clean and fix and it has never jammed since or problem. I'm one these guys that likes math and numbers so I record the amount of coins I play and the winnings. I was with PJ last week and I mentioned how this machine has not hit jackpot in 9500 dimes played and he told me to look for a little devise that are put on machines Well as you can see they soldered it so it won'i payout jackpot. Its funny what they would do years ago to make a buck