Originally Posted by seanriddle
I uploaded info on Radio Shack Monkey See #2: http://www.seanriddle.com/tms1000.html#monkeysee

Your page says:
Chip labeled
MSL^ 8214

Is the 'MSL' specific to the die maybe? I also have 'Heathcliff Math' which looks exactly like this game... But the chip is labelled MP0271NLL

Is that likely a different ROM, or just some kind of batch code used when the chips are made?