This Hansa Pocket Range Finder is in very good vintage condition and seems to be functioning correctly. It can be hand held or mounted on your camera's accessory shoe. The distance scale shows measurements in feet and in meters. Comes with case.
It is unusual to have an exposure table (with cool graphics!) on a rangefinder. If you look closely you'll see that just above the table is written "FOR MOVIE," which would suggest that this rangefinder was specially sold for use on movie cameras (though it works fine with still cameras as well). This Hansa rangefinder is nearly identical to the Kopil Mod III Rangefinder and may have been rebranded.
Hansa is a Japanese company best known for producing the Hansa Canon(s) in the 1930s.