Andy,
Some good ones mentioned so far and I'd concur that Hershey-West, Iron Valley, and Pilgrim's Oak are worth seeing.
Another you might want to consider is Galen Hall GC, which is 9 holes by Alex Findlay and 9 by Tillinghast, including the famous Moat hole. It's low-key, quirky, cheap, accessible mostly by highway, and definitely old school.