I looked at the photos on the hosting site. You probably should have the gun carefully inspected by a knowledgable double gunsmith before firing it. The barrels appear to be separated from the face of the breech (off face) and the area of the pin which engages the barrel hook looks even rougher unless the photo is deceiving me. The reblue doesn't look like a rust blue so possibly someone hot blued the barrels which is another problem if it damaged the soldered rib joints. Please be cautious about this gun until you are certain it is sound enough to shoot safely.
