My Olympian is a 1980/81 model. Decals from 1981, drop-outs from 1980 (Gipiemme). Head tube angle varied slightly, according to catalogs - but I have not measured frame angles. Mine bought as frameset, so component differences between the model years are lost to me. Gosh, I posted an ugly pic back in May of 2011.

My point being: minor frame differences from catalog spec or picture may exist. As with most manufacturers, bitd.