Shelby, I hope you don't mind but I sent a link to Jay Hopkins, posted with his permission is his reply to me:
"The short answer is that it could have come from a group of southern states- VA, WVA, NC, TE or KY. What you do know is that it did not come from Indiana, Ohio or PA. This is why you would love to know a bit more from the consigner to the Indiana auction. Let's go through what we do know. Horns with pinned "bone" (really antler) are found from all five of the above listed states. The tip configuration is more that of VA (so that could include WVA, TE, or KY) but make NC far less likely. On the other hand, the butt with the stepped tier (beehive) configuration suggests western NC, but the straight sides at the base would suggest Tenn. One would like to know the butt diameter and more about the carrying device. It appears to be a screw which would most likely be a replacement (period?) I don't know if it is possible to know what was there originally. If the butt diameter is in the vicinity of 3" that would suggest VA and fit into my category of large rifleman horns. This would also include WVA and KY where such horns were also found. I have, to date, not been able to make much out of wood types as I have seen cherry butts from all five of the above states. I think KY is a good possibility and if there had been a history of the family coming to Indiana from KY, I would have been willing to have included it in that chapter. Putting everything together, I think Tenn. or KY are the most likely. But, a handheld exam could change that and I will look forward to seeing the horn in person some day. Is it possible to get back to the auction house and then to the consigner for more information? This is a good example of why we need every small bit of history about these horns when they turn up. It is far from a precise science and the makers and owners were not thinking of us in the period. There is precious little hard data with which to work."