Hi René,

Yep, those are M63's. I remember my dad telling me they used to just wear the inners when they were on camp duty or marching about in formation when a visiting kommandant was around. Much more pleasant to wear the light plastic inner shell, and they looked similar enough to the steel outer that for presentation purposes it was fine.

They were referred to as staaldak in Afrikaans, which translates to steel roof. They phased them out in the 80's for the m87. Which is essentially a Kevlar composite type job, much like many other modern helmets. I have one, so will post a pic of it when I get a chance.