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Silver Portable Horizontal Sundial


Release date:2019-06-13
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Silver Portable Horizontal Sundial

Inventory Number: OT1905001


Made by Michael Butterfield in Paris circa 1700, 53 x 45mm, silver octagonal-shaped horizontal sundial with compass. The plate engraved with four hour-scales for the latitudes of 43°, 46°,49°and 52°, spring-loaded folding gnomon with bird-shaped index. The back plate engraved 26 European cities with their latitudes.


How to use a portable sundial:

1. Place the sundial compass on a level surface. 

2. Flip the gnomon up and lock it into place.

3. Adjust the gnomon until the tip points in the same direction as north based on your compass.

4. Locate the shadow that is cast on the rim of the sundial.




 
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