This is a nice, clean, straight adjustable wrench not marked by maker. This wrench was made around 1890, most likely in Germany. This one is 3.6" long fully closed, it is straight, has a straight handle, the jaws align faily well, and the adjustment is in good working order, with some wear on the threaded nut. There is minor wear and pitting noted, some tiny dings noted. The jaw edges show very minor wear. A nice small pocket adjustable wrench, one of the few I've seen like it! Some of the other I've seen were simply marked "GERMANY" on them.