One of the Irish doubles with the high relief Rigby damascus recievers, that I mentioned in an earlier post, is a Joseph Harkom, 12ga, round action,front action hammergun, Jones rotary underlever, straight grip, with what looked like rolled damascus barrels to me. I think the gun now lives somewhere near Syracuse NY. So for good examples of late hand hammered Rigby damascus take a look at the Harkom rotary underlever reciever. There is little to no engraving, but instead the action is 100% high relief damascus.
.
I once bought a caplock T. Mortimer, 20ga, fully engraved, str grip double, with high relief silver damascus barrels and raised proofmark silver soft plugs on top from Dutchman Woodworks for $300...I loved it for a few years and let it go for $375 to a friend from Batavia NY...wish I hadn't...I never knew much about that gun or the origin of the damascus. The main reason I bought it was because it was the only piece of silver damascus I had ever seen.