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Horizontal String-Gnomon Dial, by Erasmus Habermel, Prague?, Late 16th Century

Inventory Number 39980

Acknowledgement: © History of Science Museum, University of Oxford, inv.39980

Item type
Object
Provenance
Presented by J. A. Billmeir. Previously in the Chadenat Collection.
Primary inscriptions
"Erasmus Habermel Fec:" on edge of plate under plummet/gnomon support.
Object type
Horizontal dial
Dimensions
Height: 12cm Width: 17.6cm Weight: 1.1kg
Inventory No
39980
Accession Number
1957-84/199

Description

Square base with four bun feet; inset central compass (with divided circle graduated to 180 rather than 360 and replacement needle); sprung folding plumb level (plumb bob and line missing) and gnomon support; diagonally divided hour scale; volvelle for hour conversions. Underside of plate has a zodiac-calendar scale and scales of sunrise and sunset throughout the year.

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