DonT.
What a great gun you found there. I have always been interested in drillings in general and The Three Barrel Gun Company in particular. These are as rare as you say and I have not had the good luck of ever handling one. How are the barrels joined and do the patterns overlap the rifle barrel point of impact? Do you have any idea of what calibers/gauges they were made in? Thanks for sharing and congratulations on your find. Bob