Need Help m98 mauser
Recently ran upon this beautiful Mauser m98. Belongs to a friend who was told by his father that his uncle brought it back at the end of WW2. However it has been sporterized. I have had no luck tracing any of the markings or history of the weapon. Barrell has been reparked, receiver has been polished and reblued and has "Standard Model" stamped on the left side and "Mauser" stamped on the rop of the receiver where the codes and date would usually appear. However on the side of the receiver are several proofs B with Crown, G with Crown, U with crown and N with crown. Serial number B66851. Any help with identifying if WW1 or WW2, date of mfg and possibly when it would have been converted from military to a sporter.