This is a side by side 16/65 ga. shotgun on the top and a 7x57 on the bottom with a detachable scope, and pop up sights when the rifle selector switch is engaged.. It has a sterling silver trigger guard, and a lot of names engraved on it.. Someone told me that the names were the county in germany where it was made, the gunsmiths name, and the engravers name.. I really have no clue about this weapon, and I have been collecting shotguns for just at 40 years.. I came across this one in a trade for a Harley Davidson transmission rebuild that the customer couldn't afford to pay... Anything you can tell me about this piece is more than I know now....