Here's one from the Fall Joint Computer Conference in 1963. I actually attended this one, as I was a newly minted computer designer about then with G.E. in Phoenix. This was the pre-COMDEX period when two big professional organizations American Institute of Electrical Engineers and A.F.I.P.S. (can't even remember what that stands for anymore) held their semiannual meeting for people in the data processing world.

Anybody know what CEIR advertises on the reverse? How about I + A (I)?