I've attached pictures of the horn and the engraving. I think it's not tuned in 440, but I'm still confirming that to be the case.
Can anyone confirm that this is likely a pre-1919 instrument? And if so, anything else about it that I might be missing. I may post it up on eBay because I really don't know what it's worth and I think someone who collects these would likely value it more highly than I do. Frankly speaking, I bought it because it was cool from an estate sale and didn't know what I was getting into.

