Unmarked blades are imo shunned without reason. I have seen (and owned) very nice manufactured and conditioned daggers (anl) without mms, even with glass grips and pure ivory grips. As already stated by WW2-Collector there can be different reasons for an unmarked blade. Keep in mind that even at these times there was a big fight for market shares.
don�t forget that each certain dagger HAS a maker but it is nor shown.
And - would you look eg. for an SS chained dagger WITH mm?????????????????????
Regards,

wotan, gd.c-b#105

"Never look for sqare eggs" as a late owner of an original FHH-dagger used to say.