^ I like that funky wrap of the old proto PT-5(P). Looks like the leadpipe was changed a couple times on that horn, from the time you owned it to it's current owner, ginnboonmiller.
I still have my old Custom Music catalogs/papers that feature the PT-5, along with the other models. Since the PT-5(P) was only a prototype model and never went into full production, I wonder how many were made
It's really interesting to see how prototypes vary compared to the later production models.....i.e.: the proto
rotary M-W 2155, then the production piston 2155; the
tall proto rotary PT-4, then the squat rotary & piston production PT-4(P), etc.