- Subject
- Measurement
- Item type
- Object
- Primary inscriptions
- Unsigned
- Physical material
- Brass
- Object type
- Rule
- Dimensions
- Height: 83mm Width: 83mm Depth: 47mm
- Inventory No
- 52743
Description
See 37414 for another example, with complete instrument.
Square base plate with bevelled edges divided to 8 ungraduated equal parts and with divided circle of 4 quadrants, with cardinal points labelled. Mounted 7mm above base on a central shaft is a circular disc with a divided compass rose subdivided to 128. The disc can be fixed at any orientation by a knurled knob.
