JB interesting fact i found on the web about OPOTSCHNO....."German occupation ended on January 17, 1945, when the
Wehrmacht was pushed out by the
Red Army" This leads to some credibility that 117,000 may be the last made before the Germans left. Why do i say that well the DUO plant had 17 days in January 45 so when production ended what Berger stated if correct they made 110,000 DUOs and numbers dated 1945 post 17 January 45 go into guns when GI's got some real nice pieces in the 118,000 range. Just a thought...Easy to tell when US military arrived in other plants one began to see mismatches like on the PP and PPK's in the white no longer eagle N marked. One would have to find the last 44 stamped DUO and get a production guess what they made per month in 44 which would be east to figure out the last numbers made in 1943.... ...then figure out/estimate how many were made per month in 44 then take that number per month and cut it in half under German occupation in January 1 to 16 1945...roughly...17 days under NAZI production...hope my post makes sense?.
Wish i had my old data could certainly use it today. do you know anyone who has DUO serial numbers? The data solves this problem...did it with bayonet production in 1944 so it is easy when one has the data.