Late-60s Princeton Reverb. I believe the client found this in a dumpster. The cabinet, faceplate, and knobs are hacked to pieces and unrecognizable; the amp is only identifiable from the back panel and internal markings. Completely 100% original, including original power tubes and rectifier. The bias supply was injecting hum and needed a makeover, and the vibrato needed some work since its grounds were corroded. Gem of an amp.