$150 may be low to you both, but I based my answer on collectability of these helmet which isn't high on most German helmet collector's lists. If you paid more then I guess these are worth what you're willing to pay. They are never going to be any more valuable as WWII collectibles. Usually these helmet don't have original WWII German paint or German liners! These have been reissued to the Norwegian military, thus they have been modified!