Hi Bob,

You have a correct 1939 made HJ-knife by Klaas.

As shown hereunder, the RZM mark was on the obverse ricasso until early 1938, but was moved to the reverse side in late 1938 (and thus also 1939).

Best regards,

Herman

2.JPG (147.26 KB, 76 downloads)

You never have enough HJ-knifes!