This pistol is pictured on page 206 of the Deringer book by Wilson and Eberhard. This is a strange gun with a birdseye maple stock and has more of a drop to the grip than is normal for a deringer. There is no markings on this gun. It appears there was something on the bbl that was filed off. Sidelock is metal. The rest of the furniture is German silver. A little different than most deringers that you would see.