This Amp was my late father who has had it as long as I can remember. He was the only owner. From what I researched on line I think it's a 1972. I turn it on and it sounded good. Has 4 numbered parts. Chassis is A 36494, other part 606-2-49 and 022707 606301, 022921 606304.Has the reverb pedal, reverb pack it mounted securely,not loose. No scratches on the metal face. No holes any where that I notice. No burn marks. Tubes in side. Original book.