Inventory no. 43940 - Former Display Label
SECTOR of unknown origin
17th century
Gilt brass. Unsigned and undated.
With scales marked, "Extrem: ac med: ra: Seca:", "Linea Tetragonica.", "L. Arithm:", "L. Geome", "Lin: Rectæ - Cricumfe:", "Dividendæ Circumfe:", "L. Astrono:", "Circ: divid", "Linea Cubina.", "L. Fortifica:", and a scale of metals, marble and "Lap: Vulg:".