Vintage Gibson amp from the mid sixties. The brand name Kalamazoo was used for their budget lines.  All tube amp with 12" speaker, reverb, tremolo, with foot switch.  Uses two 6BQ5 power tubes and three 12AX7 pre amp tubes.  Has a RCA phono/tape input on back as well as a 8 ohm extension speaker jack. Very clean, original amp.   Comes with original cover.  Small Gibson tube amps are becoming very sought after, don't let this one slip away.  Serial # 19702.