- Subject
- Mathematical instruments
- Item type
- Object
- Makers
- Humphrey Cole
- Provenance
- Purchased.
- Primary inscriptions
- "H + Cole + 1580 [?] +" on reverse (see note on dating)
- Physical material
- Brass
- Object type
- Alidade
- Dimensions
- Height: 0.3cm Width: 44.4cm Depth: 2.4cm Weight: 0.3kg
- Inventory No
- 47108
- Accession Number
- 1980-22
Description
Along one edge there is a scale of 17 inches divided to 1/8ths; along the other edge are inches subdivided into equal parts. There are two threaded holes near the middle which were presumably for fixing on a sighting device.
