I've seen a rifle for sale locally that is marked 147 and 1939 and has a stock with French sling modification and waffenamts with 359 and 31 codes. My limited understanding of "French Capture" is that they were rifles made late in the war in German plants that had been captured by the Allies, and turned over to the French. From this I would expect these rifles to have late war dates, not 1939. Is this a 1939 rifle in a late war "French Capture" stock?