Thanks, Leigh, for the referral to the search function. It did turn up a lot of information. I think, based on what I read, that I got a really good deal as the bike looks like it's been stored under wraps in someone's attic for the last 20 years. Everything works, and there's no rust any where.
All the components are Shimano, and the tubing has a sticker on it that says "CroMo", which, based on what I read in the forums, means that it is a really light frame for its time.