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Inventory no. 44618 - Former Display Label

18th century

Pear wood and brass. Unsigned and undated.

This nocturnal is made for use with either the Great Bear or the Little Bear; there are two indices on the smaller disc, marked 'GB' and 'LB', enabling the observer to set the disc for either constellation. Most nocturnals are made for use with only one of the constellations.

(Lewis Evans Collection)

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