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Title: Universal pocket sundial [Go to resource]
Description: Universal pocket sundial, silver with gilt hour ring and pin gnomon, diameter 1�-inches, by Johann Martin, Augsburg, Germany, 1701-1721 (see note). License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: equinoctial sundial Temporal: 1701-1721 Source: Science Museum Creator: Martin, Johann Identifier: 1883-121 Go to resource More Like this...
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