Stamp in helmet

[Bernhard]

My fellow collectors ,

Not too long ago I got me this nice 1954 dated helmet.
I always liked the sturdy high quality of these and now want to ask
about the meaning of the stamp inside the dome.

It reads :

KZWM
1954
17/12

Could anyone shed some light on the meaning of this stamp ?

Thank you very much

Bernhard

[Blitzkrieg Bop]

The helmet looks russian. I think the KZWM is the makers mark.

[António Fragoeiro]

No, its polish.
Cheers
Nuno

[Bernhard]

As I placed this Question in another forum too I got an answer
from a collector there.

The meaning of the stamp is :

KZWM = Kieleckie Zakłady Wyrobów Metalowych

Factories of the metalwork in Kielce - city in south Poland

Regards

Bernhard