The first one I ever saw was when some young men from the Australian youth Symphony were touring the US and two of them stayed in our home. One of them's last name was Sykes, but somehow I don't think it's the same one who's known for playing tuba in Australia today. (Maybe? But I'm thinking not)
The second one was when the Philadelphia orchestra was touring same year and Mr.Krzywicki was touring with one.
Those things have their ardent fans to this day, but - back then when they were a new thing, everyone had to have one...and it was early enough in the history of C tuba playing that no one considered a four valve C tuba to be incomplete.
The description's accurate.. if you've ever played a St Petersburg B flat, these "Piggy" things are sort of the same thing in C.
Yeah, though 5th valve is a mirrophone Kaiser valve. I only had connections with them at the time for parts, and I suppose I could have reached out to Czechoslovakia but it was easier to buy mirror phone stuff and the more of the rotor that you see is .835" as of course is the tubing.
This thing has floated in and out of my hands (I mean literally: hands) several times, but I don't remember ever actually owning it.
Too many old memories trigger others when I start to post here:
I've already told one story about this concert several times where I was entering into the back door of the hall (at that time even only being 17 I'd played enough gigs to where that's sort of where I was accustomed to entering), Ormandy stepped out of his cab to enter the same door, he tripped over the unusual double curb, I caught him (wearing his tails) preventing him from a very serious injury of some sort I'm certain, we were eye to eye, he stared at me in horror I let him go as soon as I was sure he was sure-footed, and he walked into the door without saying a thing to me.
On the way back to my car after that concert - still light out, probably September daylight savings time or something (I parked on the really rough cobblestones on the Mississippi River bluff - where there was free parking at that time, because I didn't like spending money to park, if I didn't have to), from off in the distance I heard some girls hollering. I eventually realized they were cat-calling and hollering at me from maybe the 7th floor of a hotel at the top of the bluff on Front Street (as I was most of the way down the bluff walking along Riverside Drive, which was parallel to Front). They were there in the UT band (UT Knoxville) in town for a UT/Memphis State game. Finally I could focus on what they were saying, and they were trying to get me to come up to their room. I couldn't tell from that far away whether or not they were pretty, so I declined.

(truth)