拍品 290
290
An Italian brass plane-table alidade
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An Italian brass plane-table alidade

BY PETRUS GALLAND, 17TH CENTURY

細節
An Italian brass plane-table alidade
by Petrus Galland, 17th century
each side of the square divided to 1, numbered by 10 and cut with holes by 5, 0-50 in both directions, lines along divisions of 5 indented at intervals on the ½s, signed Petrus Galland, the alidade 15.5cm. long with pair of slit sights, engraved with scale divided by 1, numbered by 10, 5-70, underneath mount affixed with two screws and thread for mount (not present) and scrolled screw for hinge of alidade
4½in. (11.5cm.) side
注意事項
No VAT will be charged on the hammer price, but VAT at 15% will be added to the buyer's premium which is invoiced on a VAT inclusive basis.

拍品專文

A sector signed 'Petrus Galland fecit Venetiis' is held by the collection of the Università degli Studi di Padova's Centro Musei Scientifici, and another sector sector signed by Galland, but at the Via Coronaria, Rome and dated c. 1698, is held in the Mensing Collection of the Adler Planetarium, Chicago (inv. no. M-89q).