First, thanks to all for the friendly comments!

Serge,
All the NJS daggers that I've see, incl. both in my own collection, have the grey lines.
Here the close up from the makers logo.

About the font of both daggers: I'm working on it, I hope to find more info about that type of letter.

Mr. Weinand, compliments for your good memory...! My c-type have alu rivits, the A-type steel rivits.
Only one diference: my c-type has the grey lines too. (I think, it was in the 70/80's technical not possible or to expensive to make the same grip with lines for the repro... we can be happy about that!)

About the weight of the daggers:
A-type:
Dagger 147 grams, scabbard 58 gr. = total weight 205 grams.
C-type:
Dagger 121 grams, scabbard 44 gr. = total weight 165 grams.

Principle, it's the "same story" as the HJ Fahrtenmesser: iron hilt at the early daggers, non-magnetic (I think "Zinkspritzguss") at the later produced daggers.

Detail-pics of the A- and C- serienumbers will follow asap.

I've pictures from the "funny" repro from deVries-Arnhem, they will follow.

Regards,

Edwin van Veelen

Here the motto and maker from the 1th type/A-serie.

motto_en_hersteller_A-serie.jpg (46.58 KB, 456 downloads)