This classic stand-alone 6G15 circuit is the gold standard for delivering lush, full reverb to your amp. It shows signs of prolonged storage, with some oxidation on the metal parts, and a little warping of the tolex on the top. Other than a changed handle this unit is 100% original, including the 2-prong power cable—which some prefer, as grounded cords can occasionally introduce noise when used with certain amps.
Despite being fully functional the buyer should note this amp has long expired electrolytic capacitors. Should someone need prolonged or gigging use from this piece then servicing would be advised (cap job, etc).