Post war friends
The liner system is post-war style and such stars were not painted on wartime helmets.
The number is the lot number, the single digit in front of the serial should indicate the helmets size.
this would be considered COLD WAR 1950's - 60's
In any case, it is a very nice helmet. I like it...
Fellow collectors are NOT adversaries to be bested...
☭ "Ричик, я не понимаю, почему, почему ты тратишь деньги на эти вещи!" ☭