This pocket sundial made of brass has got a compass in order to adjust the centre line to North-South. The shadow of the bolt will point exactly to the 12 (XII) accordingly when it is midday.
The face is adorned with Roman numerals and engraved twines.

Measurements: 28mm x 53mm x 15mm / 1.1" x 2" x 0.6"
Weight: More than 300g / 0.6 lbs, so that is not only a nice decoration but a fine paperweight too.