but unless specifically made for the US-UK market, wouldn’t that have been “GM” for “Gerbruder Mauser” ?Styleized “Mauser Brothers”??
I wonder if it is present on no-date and 34-dated rifles - or maybe only on certain s/n blocks of 33-dated rifles - or - only on rifles made for a certain customer.The first 33 dated Banner K I took apart has that marking, along with one other.