Thank you for posting this. It is a pretty fine piece of early Americana. Wonder how it wound up under the house? Kids hid it there, maybe. It is almost certainly a calling horn given that the spout is hollowed out and is somewhat wide. Took an expert set of lips to blow that thing, but if you wanted the kids to come down off the hills for supper, or to bring the dogs in on a hunt, it was well nigh indispensible. Do you think that you can track down some history on it?
Dick