Date | 18th century |
Place | Persia (?) |
Material | Brass |
Inventory no. | 50180 |
Acquisition | Presented by J. A. Billmeir in 1957 |
Alidade
Appearance | Tip | Sights | Pinholes | Notches | Description |
---|---|---|---|---|---|
Double-ended, original. | Gothic, simple | Rigid | Single | Single | This rule is plain and unmarked by any engravings.. |