Resurrecting this thread because of a Fisher listed on ebay. Stickered as a procaliber with Columbus tubing, but I have to assume that the one or both of those stickers are incorrect later additions. The Procaliber decal in particular doesn't use the usual font. Also might be a repaint because, aside from the early customer choice color bikes, I don’t see any references to a white frame.
Serial number is barely visible and looks to me like it starts with P followed by seven numbers.
I think 1987 because the seat tube top lug is shaped rather than flat across the top. Might be racing oriented IF the frame did not include rack/fender mounts originally.
I don't know that the XC9000 brake is original so i wouldn't count on it helping too much, unless there was one specified with it.
Is it a repainted procaliber? or something else?