I have a drilling that I received in a trade some years ago it is marked H. Burgsmuller & Sohne Kreiensen on the rib in gold and is engraved with game seans on both sides of the receiver. It also has a cartridge trap that opens sideways on a spring loaded hinge. It is in 20 ga. over 25-35 and in good to very good shape. Can anyone give me any info on this gun.