It's in good condition, still in the original case with the tool, has 1 clip all the numbers match (even on the case). CPs were originally given a unique reference number by the RAF. Though the Luger was used mostly by German forces in World War I and II, Finland, Switzerland and Poland also adopted the pistol for field use.
Front toggle link marked S/42 in Gothic or script this was code for Mauser. 5 million numbers stopped in the area of 2,535,XXX which places it about 39,000 rifles from the end of production in June 1945.
Luger serial number records 36 Navy ,22 Pocket Marlin Model 39 Serial number prefixes Glock 36 Recall Serial Numbers.