Thanks for posting.
Would be really great if you could post a photo.
I see from the "Bitters Bottles" book that this is a square body amber bottle like a Dr. Hostetter's (and no doubt a clever play on the competitor's name). The only note is that an example was found in a well in Louisiana.
Evidently it is fairly rare since there are no auction records. About the best one could say is that it would fall at the top end of value for all amber square bitters bottles.