This is an excellent example of a pocket brass sundial SUNWATCH made by Ansonia Clock Co. USA in early 1900's. The device has a nice adjusting gnomon and a table with latitudes and and declinations from that era and original carboard case. The compass face has 18 mm diameter and a nice hand. The brass case still has the original lacquer and the carboard case is missing just the ends Dimensions of the dial: 75 mm x 48mm x 8 mm.