BALLY CONTINENTAL LEFT OR RIGHT 25¢ QUARTER SLOT MACHINE 847 WORKING W/ VIDEO | eBay
SOLVED: The author purchased a slot machine (Bally Model 809 ), and tested it by playing it 1197 times. When testing the claim that the observed outcomes agree with the expected frequencies,
Bally 809 P Slot Machine re-birth ! - YouTube
Bally 809 Winner Paid willl not clear after max jackpot. *resolved*