... In and amongst the pile was a "Rival" field grade 10ga with 30" Damascus barrels. .... The only glitch I can see (apart from a few dings in the wood) is a small dent in the right barrel, about 3/4 of the way up the bore. .... Also, is it possible to repair a dent in Damascus without compromising the weld? Any information on this particular shotgun or 10ga BP loads in general would be greatly appreciated. Thank you for your time.
Rival is a known trade name of Crescent. The Rival was made for the Van Camp Hardware and Iron Company of Indianapolis, Indiana. They were cheap, utility guns when they were made, mostly selling for under $20.00. The barrels were produced in Belgium to a very low price point, usually under $2.00 for both tubes.
Like almost all of these guns, yours has Twist / Laminated damascus barrels.
The skill to repair damaged damascus is long gone. The gun needs to be examined carefully by a gunsmith like Terry who understands older guns and damascus. Depending on exactly where the damage is, the gun may be shootable as is.
Pete