hall quinby rotary valve trombone

[victor floyd]

thanks for your help

[davewerden]

Interesting horn! I enhanced the logo a bit, which I will show below. The text I see there is:

Made by
Hall & Quinby
Boston

...in case that helps anyone here with identification.

[davewerden]

It looks similar to a rotary valve cornet, made between 1870-1875:

https://www.metmuseum.org/art/collection/search/503762

[bbocaner]

I'd say it's probably 1870s. Nickel silver is desirable and Hall and Quimby were a good maker. Valve trombones aren't all that desirable and it's almost certainly high pitch. I'd put the value somewhere between $500 and $1000.