This is a 1975 Fender Silverface Pro Reverb. Replaced the original electrolytic caps, "Blackfaced" the circuit, got rid of the push-pull master volume, replaced some faulty parts, and cleaned up the exterior.
I also modified the output stage for a little more grit, modified the Vibrato channel to better cut through a loud band, and converted the Normal channel into a "low gain" option.