- Item type
- Object
- Provenance
- Collection of J.A. Billmeir
- Primary inscriptions
- 'ROMÆ a. 1578'
- Physical material
- Gilt copper
- Object type
- Nocturnal
- Dimensions
- Diameter: 83mm
- Inventory No
- 48140
- Accession Number
- 1957-84/239
Description
One side has a nocturnal, the other the Rojas projection for the 'organum Ptolemai' form of altitude sundial.
