In perusing the Carvin Museum, I think I found some more facts about this amph. It is an X-60C (the "C" indicating a Celestion speaker). It was most likely made in 1986 (they were made between 1983-1987, but the "C" part seems to have started in 1986) and originally cost $329 which would be $773 in today's dollars. They don't hold value because they don't have "Fender" on the grill, but it does a great quasi-Blackface imitation.

It is a circuit board design, made in America. I had to have the tech spray the pots with some contact cleaner--the tone controls were pretty noisy. The footswitch jack (which is an XLR type) was pushed in so that had to be adjusted. The guts of it looked very clean. When he had it out I noticed that the previous owner put JJ 6L6s in it. The three preamp tubes (maybe two? not sure if one drives the reverb tank) are JJ, Fender, and one I couldn't read. The reverb tank is Accutronics. It is the same size as their current type 8 tank.