Barrell left side has this marking;FEMARU-FEGYVER-ESGEPGYAR R.T. 37 M. Above handgrip (also left side) is 214802. There is a stamped marking that looks to be a castle or a shield,on the front of trigger housing Every vowel in the above has an accent mark over it. Has been in husbands family for years noone has any info on it. Any info. will be great!!