I took another good look (sorry about the clarity of the photos..) and don't know what the worn mark is at the end of "antinit"...But, there is an S near the stylized L for the Kelbers, an eagle over "suhl" over crown over "U" on the rifle, as well as a crown G on the rifle. Shotgun tubes bear eagle, crown S and an additional crown U on the right barrel and crown W on the left barrel. There is a number 238 near the 1236 date. Thank you for all the help. Pictures of the gun can be seen on an earlier post about the scope rings. Maybe the engraver can be identified? Steve