Quote Originally Posted by WebSmithEddy View Post
It is likely post-war Dutch, converted from Britishicon or Canadianicon helmets.

I have one just like yours that I bought years ago. Mine also has the leather neck flap.

Mine has "VB5512SLO" on the underside of the rim in back, and the number "56" stenciled on the metal liner strap.
Helmets with this stamp on the rim are actual Dutch made helmets. VB is for Verblifa Vereenigde Blikfabrieken. Direct copy of the MkII.