I've played this horn. If you like Miraphones, you'll love the extra bit of bore on this. I LOVED the sound and I can't stand Miraphones. Valves moved well. The horn was overhauled at some time in the past, so the bell is a bit soft, but overall It's a good horn.
Quite Cerveny-ish - "standard" Cerveny 4/4 tuba bore (20.2mm), not kaiser by most standards. Looks like top loaded valves so probably pre-1938. Most likely a great sounding horn but patches, screen door springs (broken clocksprings) generally beat to crap ...
American sailboats, airplanes, banjos, guitars and flutes ...
Italian motorcycles and cars ...
German cameras and tubas ...
Life is Good.