John Can.
Pre WW1, 98 mausers came from Mauser.Post WW1,used actions were avaliable from many sources and didn't have to come from manufacturer.These actions were often re-ground to remove original markings.The Mauser commercial actions usually had the Mauser number(not always the same as the serial number)on the back of the magazine box.Also commercial actions usually had the set triggers(when furnished)built into the mag.assy.,whereas surplus actions had set triggers in a separate assy.,let into the mag. assy.
Mike
