Opinions Please:
The father of a friend has had this *** compass for quite a while. He was told that it is for a Zero. But He thinks it belonged to a ship. It has a navy marking. Zero's were used by Army & Navy. But would they have marked the instruments differently? Here are a few pics. Maybe someone can translate the tag. Your help would greatly appreciated.

a001.jpg (17.38 KB, 150 downloads)