I am clearing out all of my collection that I've accumulated over the years and I have a couple questions about a Denison Smock that I am about to put on eBay. 1. What year did the DPM Para Smock replace the Denison ? (1980ish?) 2. Is the Denison Smock I have pictured below a reproduction from Silvermans (if so, what tags do they have in theirs ?) or an original ? (And, if it is an original, it's probably one of the very last to have ever been made.) Many thanks in advance for the advice.