Michael...Linder 1680 and Donn 941 appears to have been engraved by the same hand. Ok I will say that it WAS engraved by the same hand. The game scenes are the SAME and I don't mean just sort of! Interesting to me that the ribs on the two guns noted above appear to have been checkered ala Bill Wise Matsuka (sp) gun...and that both guns (941 & 1680) have German features (Greener cross bolt & side clips)Features not generally seen on English boxlocks. Could it be that Kilby was having actions sourced in Germany for a period of time and he just the German makers HIS (Kilby) bbls to be fitted to the actions? I think that this may have been the case. It would be interesting to find out more about Kilby and his method of operation. As it s, it appears that Kilby was a custom maker for a descriminating clientle. Guten Tag. Jeff S.