I recently read a thread,about a 1917 model,someone wrote on the thread that at some time period the trade mark stamp for smith was held to speed up production of military guns,could someone share some of this history,what was the time period,did this effect all gun production,I have a 1905 4th change,it has no trademark stamp or 1 line address,it is nickel but has no n or b anywhere,it does have the maltese cross emblem. Thanks