Condition? I laugh at this foolish idea!

So I picked up a Sixty Five Reverb and 115 RH Sixty Five for $300 at a musician's swap. The thing looks as though it was in Hiroshima on August 6, 1945 and then toured with The Who for a few years. That said it sounds like a flippin' HIWATT at bedroom levels. It has the 12AX7 in the back, but no date anywhere in the head, so I have no idea when it was made. All I see is "8/80" on the preamp board and a huge "2" with some weird scribbles on the side of the chassis. It's rusty, but the transformers are in good shape, and despite it looking like it's fallen off a truck and then run over by said truck, it looks to be newly recapped and the tubes are fresh, so it's been maintained... though the tolex is peeling up... Anyways, images exist.
The quote from the guy I got it from "This amp cannot decrease in value without catching fire and exploding."

Oh and if you're wondering, Russian Big Muff Pi's sound great through it. And the guitar is a homebrew set neck strat with Musikraft body and neck.