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Signed on one arm 'Nicolaus Blondeau F'
Details
A 17TH-CENTURY BRASS FORTIFICATION SECTOR
Signed on one arm 'Nicolaus Blondeau F'
Each arm engraved with scales with metallic symbols, one arm with additional scale inscribed 'Il Ferrum', inner arm with scale for 'Tabula Ignographiae Munimentorum', the other arm with diagram and calculations for 'Orthographia Munimentoru', the hinge with scale divided into quadrants, and constructed with iron strengthening rim, each arm with extension piece pierced for use with a plummet, one engraved 'A'
11.1/8 in. (28.2 cm.) long closed
Signed on one arm 'Nicolaus Blondeau F'
Each arm engraved with scales with metallic symbols, one arm with additional scale inscribed 'Il Ferrum', inner arm with scale for 'Tabula Ignographiae Munimentorum', the other arm with diagram and calculations for 'Orthographia Munimentoru', the hinge with scale divided into quadrants, and constructed with iron strengthening rim, each arm with extension piece pierced for use with a plummet, one engraved 'A'
11.1/8 in. (28.2 cm.) long closed
Provenance
Rothschild inv. no. AR1477.
