This is really a nice piece. I would assume this likely saw use in WWI but would guess the compass is actually made right around 1900. Compass works perfectly and is marked as being made in Germany. The cse was obviously made for this particular compass as the fit is real snug and the base of the compass loop nestles perfectly in the hole in the hole. Closes securely with a pressure fit. Hinge is well made and in good shape. No damage found and a nice, even patina throughout...