i got a copy of the book, very interesting article and perhaps he did do the gun, but i spoke with Larry Delgrego and I'm taking the 2 guns to him to look at he's certain runge didn't engrave it but said an apprentice or a very good engraver could duplicate the b grade engraving he said only a a1 can't be duplicated so hes going to look at them and tell me what he thinks and tell me what to sell them for if i ever want to sell them he said don't sell them online or i will surely be ripped off