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Sundial - Diptych, Leonhart Miller, Augsburg, Germany, 1640 Object Reg. No: ST 023634

Ivory diptych sundial, made by Leonhart Miller, Augsburg, Germany, 1640.

The thin thread serves as the gnomon for the horizontal dial. The angle of the thread can be adjusted to 42, 45, 48, 51 or 54 degrees to correspond to the latitude, by passing the thread through the appropriate hole in the lid. A table on the lid shows the latitude of some principal European cities.
Cord from lid to base, compass in base but needle missing. Under base rotating metal disc with pointer, around disc 2 circular scales with arabic numbers, inner scale 1 to 12 twice, outer scale 1 to 29, on top of lid.
German labels, inside lid list of places with numbers
Discipline: Technology
Dimensions: 1.3 cm (Height), 5.5 cm (Width), 9 cm (Length)

More information

Tagged with: sundials, horology
Themes this item is part of: Science & Measurement Collection
Primary Classification: HOROLOGY
Secondary Classification: Sundials
Tertiary Classification: germany
Inscriptions: NSEW marked on compass. Sundial circle around compass marked 'Soli Deo Gloria'.
Maker: Leonhart Miller, Augsburg, Swabia, Bavaria, Germany, 1640

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