Daveo.....Welcome to the Forum. Your Luger is one of about 38,500 (Jan Still... Third Reich Lugers) that were made in 1939 and stamped with the S/42 code. There were another 85,500 made in 1939 that had the 42 code. The approximate serial number range on the S/42 were 4000n to 6000r. The N on the barrel under the serial number would indicate it was early in the production run. They made them in blocks of 10,000 guns.
It would sure help if you could post some pictures....... I'm sure some other people would be able to help you out with your holster.
It would sure help if you could post some pictures....... I'm sure some other people would be able to help you out with your holster.