The French HSc
From May of 1945 to June of 1946 the French had control of the Mauser-Werke plant and produced 19,300 HSc pistols. The serial numbers range from 951 940 to 971 239. These pistols will have the "WR" acceptance stamp on them.
The first 4,704 were assembled using parts in stock left over from the German control. The next 14,596 were manufactured using new supplies that the French brought in. These guns were produced for the French Indochina war.
When the French moved in the plant they obviously didn't follow the status quo.
If you compare the French made HSc (Sn 956 644 thru 971 239) with German made during the war years you will find a big difference in quality and workmanship. The French, for that one year, may have made a better quality HSc then most of the ones the Germans made during the war.
During the war years the plant didn't have ALL of the same personal, operational procedures, RAW stock etc. So there were runs where quality was indifferent.
The magazine is one example of improvements that were made. The French HSc mags with the half moon bottom plate were made with better steel (close grain). The half moon rib reinforcement was added to give the bottom plate support when using the mag to field strip the barrel from the slide and better leverage for mag removal in the field.
When you see a "war years" (MAUSER) stamped mag with the flat bottom plate and it is slightly bent up, it was probably used to remove the barrel from the slide during field stripping.
When writing about the " Post war" HSc most articles refer to 1968 thru 1977 vintage and skip the French production all together but the true Post war HSc were the ones made by the French May 1945 thru June 1946.