OWD, The story on the Russian 12b DB Built in Tula for presentation by Premier ******* to British Prime Minister ******Was a very interesting 'Copy' of a Purdey Self Opener, Very well Built,(A little Over Engineered) some of the linkage of parts to parts was Interesting.The trigger unit had a Two-Trigger,RT,Left, But on firing the rt, Releasing and pulling the 2nd time it fired the Left bbl, Reloading,Firing the rear trigger, releasing and pulling for the 2nd time, it fired the Rt bbl.It belonged to a Brit'I dont think they sold too many, I have seen 4, all shotguns.. Mr Sergey Lyalko served a couple of years at the Tula Gunsmithing School,He lives in Mass. and has been very helpfull with the Translation of printed matter,From Russian to American and is a Fine Gunsmith,has articals in The American Gunsmith Magazine. c/c