Gentlemen: I have followed this thread with keen interest, for I own a Jeffery double rifle, #22263, 333 Rimmed, scalloped action with full coverage scroll, made in December of 1912. The page from the Jeffery logbook for that period notes 5 double rifles having been completed and 5 double shotguns. The sidelock double rifles and sidelock shotguns, under the category "made by and date," list first the name of Leonard, followed by Rooke, Krupp, Sanders, Flavel and Price (not all the guns list all these names, usually it is H. Leonard followed by three or four of the other names). The boxlocks, both double rifles and double shotguns, list only Leonard as the maker. This is a page from 1912 and Turner is not mentioned, giving strength to the assumption that the firm had been disbanded by then. Thank you all for your dedication and scholarship on this fascinating subject. Sincerely, Keith McCafferty