if your helmet was reissued at some point it has to be marked
with a bekleidungsambt belonging to bavarian units
if you remove the plate witch inprint do you see ,only from the bavarian plate or yet another one
does it have 'double 'holes witch are filled in or not
filled in holes are orignal altered at that bekleidungsdepot
roughley made holes may indicate that is was selfmade by another person
normaly there has to be the lettre 'f' sommwere for 'feldbrauchbar'
i sugest dig in to your helmet and let us know what you have found
jonas