I am trying to I.D. an early shotgun for a friend , it is a 12 Ga. breech loading gun with an unusual breech . It opens by rolling to the right on a hinge bar when the hammer is cocked , this piece also slides back to act as an ejector . It has a " 39 " inch barrel from breech to muzzle , the stock has a raised comb and has the numbers 343 on it near the butt , the same numbers are on the inside of the breech block but with a " P " in front .the butt plate rolls up over the top of the stock for about " 2 " inches .near the receiver on the barrel the letters LG inside a square appear ,on a screw at the rear of the sideplate is the number 15 , badly worn on the side plate are two lines of scroll the bottom looks like dE C ****** too worn to read . possibly military ? If I could figure out the process I would post pictures , still working on that . My brother has an old military rifle with a similar breech , he believes that to be belgian with the name Kor buhl ???? thanks for any help ......