Title: Protractor
Object type: Protractor
Date: 1683
Artist:  Jacob Lusuerg 
Artist bio: [Mutinensis] worked 1673–88
Artist role: Maker
Medium: Brass-gilt
Dimensions: 4 5/8 x 2 7/8 in.  (11.7 x 7.3 cm)
Classification: Metalwork-Brass
Credit line: Bequest of W. Gedney Beatty, 1941
Department: European Sculpture and Decorative Arts
Repository: Metropolitan Museum of Art, New York, NY