I have a gold plated Holton serial 82951 with LF on the receiver (for low frequency). I believe the horn dates to 1924. Serial is on valve casing, has Frank Holton, Elkhorn, Wis on bell in addition to beautiful engraving. This is also a model that has the key adjuster (for it can go to A or Ab).

I would like to know what model is the horn and any other info about it. I am new to form and don't think pictures can be posted -if the can let me know. If someone would shoot me a private email, I'll be glad to send hi res photos to help with identification.

Thanks for any help,