Triduco
A triangular tool used by the Scribes of Gizad and the builders of Gorm for fine, detailed measurement. Each side measures one Hand in length.
The tool is marked on its three sizes with units of measurement, each side having finer and finer markings for smaller measuerments.
The triduco with a circle around it is also the holy symbol of the god of the Scribes, Gizad.