The piece 41ddl coulnt go to SS because of the serial numbers, the serial numbers were added as acountability numbers of Army, they proofed it with WaA stamps and after this it was property of Wehrmacht. Thats because army didnt proof it with unit markings, the bayonets go directly to Depots, where were distributed to units later, the serial number with letter was important for invertarisation, same as soldiers got this numbers in their soldbuchs and were responsible for their equipment.
That Your piece have a SS stamp could only mean a rework by a SS fieldrepair unit or camp, or the stamp is a fake.