A brief rundown on each, without photos:
Adams E2 - bought new in 2017, this horn has held up well with regular playing. A small ding in the bottom bow that occurred while cleaning it about 3 months ago. No effect on playing. This horn has an 0.80 mm brass thickness with silver plate, so it rivals the Bessons and Booseys of old -- those horns are tanks and it takes a lot to bang them up. Very happy with the horn -- still running the original valve felts, thought I did order a set of Mead springs as the original springs aren't quite as springy as I'd like them. When those springs come in, I think I'm going to get replacement felts regulated with them -- I have the felts ready to go.
Edwards bass trombone -- Some wear on the hand slide in the usual spots, but I had the horn chemically cleaned about 10 months ago. No red rot, though I thought there might be some developing. Hand slide still silky smooth. No dents in the bell section.
Kanstul 33T tuba -- this horn was worked on by Lee Stofer to shorten it slightly and some extra tubing was excised with the expected scarring. No big deal. The horn plays nicely for me, in tune with itself, and while I don't want to play tuba regularly, I do on occasion. This horn will be around longer than I will be.
Boosey & Co Imperial euph -- again worked on by Lee Stofer to shorten it and while the re-done silver plating isn't the best from Anderson after Lee did his magic, it's adequate. I LOVE this horn and play it when I need a more compact sound. It sings wonderfully.
U.S. Army, Retired (built mid-1950s)
Adams E2 Euph (built 2017)
Boosey & Co. Imperial Euph (built 1941)
Edwards B454 Bass Trombone (built 2012)
Boosey & Hawkes Imperial Eb tuba (built 1958)
Kanstul 33-T lBBb tuba (built 2010)