The Clear 97 chip is used on the IGT S2000 type machines.  You will use this to fully clear...

The Key 31 chip is used on the IGT S2000 type machines.

Physical appearance might...

The VS011IX1 chip allows the operator to select the currency symbol and set to other than US...

The VS011IX0 chip allows the operator to select the currency symbol and set to other than US...

IGT Electronic Ballast For F15T8 Lamps 19507690 15watt, 0.62A, 25VDC