Bonham Stereo 330 Tube Amplifier $400 - Arleta CA
Dan Bonham ws an Engineer at Magnatone who got patents on some of their "True Vibrato" tube technology and used it at his own company AGC in Van Nuys CA in the late 1960's. AGC made Audio Guild, Titano and Panaramic amps and are associated with Bob Hall's more famous Company Versatone whose amps were used by players like George Benson and Carol Kaye.
This Bonham 330 looks very similar to a Versatone Grand Prix though it has an extra knob, probably related to the Stereo function. Expect this to produce "high fidelity" quality sound like a Magnatone. It looks to be in very good condition from the photo which mean sit was probably in a studio for most of its life, which is where most of these amps continue to reside in Southern California.
Note: The seller listed this amp under "Electronics" on CL - not Musical Instruments.