Interesting that you both feel that Lester may have been a retailer or at least not a maker. I kind of wondered if that was the case. Tim, it does not have a name on the rib, just says "London Laminated Steel". If Lester is not the maker it would be interesting to know who did and since the firing pin was mentioned heres a picture of the top. I find what I call loaded indicators interesting, the pin raises up with a shell in the chamber.