Tuba Finger Button (Conn?)

[LargoBone]

I found an old finger button in the case of a horn I bought a while back, and I'm not quite sure what it goes to. It's in good shape, no chips or cracks in the mother of pearl and the threads look fine. There's no corks or felts to go with it.

Pics: https://drive.google.com/drive/folde...8w?usp=sharing

I've done a little research and found some tubas with similar-looking finger buttons, but this list may be incomplete. Please let me know if you can confirm or deny any of these, or if you know for certain what horn this might go to.

Conn 10J
King 1140, 2370, 1280?, 1260/61
Martin Mammoth
Reynolds?

EDIT: It seems to be from an older King tuba, possibly the old-style 2340/41 and 1240/41, and maybe Olds and Reynolds sousaphones as well. Let me know if you need a replacement finger button for one of these horns!

EDIT 2: I've been told this would fit a King euphonium as well. This has been confirmed on a 2280, fits like a charm.

$5 + shipping and it's yours, with a refund if it ends up not fitting
Send me a PM or email me at largobone@gmail.com if you're interested.

[LargoBone]

I've added a couple of notes about what horns this might go to.

[John Morgan]

I found an old finger button in the case of a horn I bought a while back, and I'm not quite sure what it goes to. It's in good shape, no chips or cracks in the mother of pearl and the threads look fine. There's no corks or felts to go with it.

Pics: https://drive.google.com/open?id=15Hs1i ... TKMQ8NUu8w" target="_blank" target="_blank" target="_blank

I've done a little research and found some tubas with similar-looking finger buttons, but this list may be incomplete. Please let me know if you can confirm or deny any of these, or if you know for certain what horn this might go to.

Conn 10J
King 1140, 2370, 1280?, 1260/61
Martin Mammoth
Reynolds?

EDIT: It seems to be from an older King tuba, possibly the old-style 2340/41 and 1240/41, and maybe Olds and Reynolds sousaphones as well. Let me know if you need a replacement finger button for one of these horns!

EDIT 2: I've been told this would fit a King euphonium as well. I'm going to try it on a 2280 at school tomorrow, and I'll update this with confirmation.

$5 + shipping and it's yours, with a refund if it ends up not fitting
Send me a PM or email me at largobone@gmail.com if you're interested.

Your link to the pics is goofed up.

[LargoBone]

Thanks for letting me know, I put a different link on there. Let me know if this one works.

Also, it does fit King euphoniums; I tested it on a 2280.

[LargoBone]

King Tuba/Euph Finger Button

...