I've got a nickel-plated Orsi Eb that looks like that--very small 0.500 bore, 13" bell, takes tenor-shank trombone mouthpiece. I'd characterize mine as more of an upright valve bass trombone.
Well, mid-tenor-trombone/euphonium range is pretty good, but the low (tuba) end tends to be very very sharp. But then, I don't think anyone in their right mind would want to play something like this much below the staff.
Chuck(G) wrote:I've got a nickel-plated Orsi Eb that looks like that--very small 0.500 bore, 13" bell, takes tenor-shank trombone mouthpiece. I'd characterize mine as more of an upright valve bass trombone.
I believe I have seen it (without the nickel) in Klaus' pictures, where it's a "cimbasso".
I have an Orsi Eb that's a little bigger - bell is 14 or 15", and generally is more in the tuba family, though not a big tuba by any means. Its intonation is OK. I played it only last night in practice, but can't say for sure from memory if it's fatter than the F. The F doesn't look as skinny as yours, to me.
Like I said, this is a little guy with a tenor-shank receiver. The leadpipe tuning slide is reversible. That F might be a little bigger; it's hard to tell.
When I wrote Romeo Orsi with the photo of the thing, they called it a "cimbasso" also. So mine is probably more of the trombone family than the tuba family.