Vpnewbie the 3116 machine is a multi denomination machine. 25-cents, 50-cents, 1-dollar, 2-dollar. Next time you're there look again. You can change the denomination by pressing on the 25-cents symbol. The machine automatically resets to 25-cents after it is not played for a period of time.
Actually I can save you the trouble of looking at the machine. Look at the tickets. In small print it says Asset # 3116 which is machine 3116.