GPL Eprom Models 159, 160, 172, 173 - Rev 160.11 - See Below
SKU: ICGPLEPROM159-160.11
For models: 159, 160, 172, 173, 452, 453, 467, 468, 490, 491, 493.
The current version is 160.11.
This eprom has 32 pins, if you are replacing an older eprom it may only have 28 pins. The silk screen on the board has the legend and shows the divot.