slightly OT: NMOS gate identification

I'm attempting a painful task of extracting logic from an image of a NMOS die manufactured in 1984. Initially, I'm only going after a small portion of logic from the chip. I have a block diagram which appears to roughly match the chip layout, a pinout, and an overall description of the logic. I have very little clue what I'm actually doing, but I'm trying to fix that. :) I'd like to develop a library of images of NMOS logic cells -- and perhaps using pattern matching later, try to automate the process. Does anyone here happen to know this stuff well enough to say, "there's a NOR", "there's an OR", "that's an inverter." etc? Anyone know the types of books I should be looking at to get this type of information? NMOS Chip fabrication? Much of what I've found talks about the actual process, but they normally show side-views of layers. I'm looking down on the chip through a few layers and need stuff from that perspective. I have a couple example shots here http://www.techtravels.org/snippet.jpg http://www.techtravels.org/snippet2.jpg Keith P.S. Yes, I know, I'm crazy.