One Owner, all original circuit. Made in the 1990s, 3 digit serial number(within first 1000 units made!). Perfect working order. Unit shows general wear, great condition overall. 1/8th power jack changed to dc barrel jack. Volume pot repaired (When Technician performed this repair; a section of circuit board was de-gooped, he determined the problem was in the volume pot, repaired it, then re-gooped said section. No mods were performed to the circuit, Classic Klon tone remains) One of the two bottom screws is not original.