Here's a frame I picked up for free off craigslist. 23" size, super slack headtube, built for fat tired 26" wheels with cantilever brakes, but 130mm dropout spacing. The headset is an oddball, taking a 1" steerer but the outside diameter of the cups is 32.7mm (???) What's the vintage?

http://flickr.com/photos/13254510@N0...7607335040736/

Apologies for the rattlecan paintjob.