A portable diptych sundial with compass
By BERINGER, David, 1777
[Diptych sundial and compass]
- Author: BERINGER, David
- Publication place: Nurenburg
- Publication date: c.1750
- Physical description: Small wooden sundial and compass (870 by 560 by 160mm); engraved and hand coloured paper pasted onto the lid and inside.
- Inventory reference: 3029
On the lid is an engraved list of 48 European cities with their corresponding latitudes. The sundial opens up in half to show two hand coloured dials and a compass on the lower one. A coloured cord, or gnomon, would have connected the two and drawn a shadow when in sunlight. The gnomon could be adjusted depending on the location of the user, with the numbers corresponding to the cities’ latitudes.