Hi David,
I may put a spider sight on my English fowler that I have been posting recently. If I do that, I will show the process. I am working right now on making the barrel appear to be Spanish, which involves stamped marks for the maker and the town in which he worked, and other decorative barrel marks. Working on other peoples guns plus figuring out how to make authentic looking Spanish barrel marks has slowed me down a bit recently but I will get to it.
dave