Pooch, I was in error about my guns. Nigel Brown in London Gunmakers lists my guns as 1916 manufacture, last gun in 1915 as 11,000. It lists the posters boxlock as 1919, the last gun of 1918 being 11,779. I'm sure there are other charts and "factory letters", but this happens to be a chart from a book I actually own. The numbers of the guns in question are from missing Evans stock books, so the years of manufacture of guns from 10,426 to 13,222 are estimates only.