Made of brass, a folding "gnomon" shows the time on a neatly lettered paper face, reproduced in the original red and blue colors. This type of instrument was made in England and Germany in the mid-1700's and was popular as a timepiece and functional compass.
This compass has a small crack in the glass.
The compass is 1-3/4" diameter, polished brass, suitable for engraving.
Best quality, this nice compass is made in the U. S. A.