Augsberg-Pattern Universal Equinoctial Dial by Johann Georg Vogler

Description:

Augsberg-Pattern Universal Equinoctial Dial by Johann Georg Vogler, signed on underside IGV, with foliate engraved gilt-brass octagonal baseplate, silvered compass with sixteen-point rose, folding chapter ring divided III-XII-IX and 4-12-8, hinged latitude arc 20-80, pierced plummet support, and compass box with engraved names and latitudes of sixteen mainly German and Austrian cities, wd. 2 3/4 in., (lacking plummet and gnomon).
Estimate $800-1,200

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