Brass
Brass was one of the most frequently used materials for mathematical instruments. It can be readily formed, is relatively stable and provides a good surface for engraving. Often it was combined with other materials such as glass, steel, ivory and wood. For decorative effect, the surface could be gilt [5].
Other narratives:
Related Objects:
- Inventory No. 36730, "Simple Theodolite, Surveyor's Cross and Sundial, 17th Century" [1957-84/255]
- Inventory No. 47714, "Astrolabe, North African, Late 19th Century" [1924-0/part]
- Inventory No. 35939, "Simple Theodolite and Sundial, German, Early 17th Century" [1957-84/252]
- Inventory No. 43731, "Pair of Dividers, 18th Century"
- Inventory No. 52940, "Sector, German?, 17th Century" [1957-84/257]