An early 18th century gilded oval pocket dial by Krigner.
Price range: £20,000 - £30,000
The dial, which is signed 'Krigner, Varsavia', has an automatic mechanism to set the dial for any given latitude from 40-60˚.
The reverse is engraved with a long list of latitudes for eastern European, western European and Russian cities including Moscow, St Petersburg and Vienna. c.1700.
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