Date | 20th century |
Place | Persia (?) |
Material | Brass |
Inventory no. | 54545 |
Acquisition | Presented by J. A. Billmeir in 1957 |
Alidade
Appearance | Tip | Sights | Pinholes | Notches | Description |
---|---|---|---|---|---|
Double-ended, original. | Simple | Rigid | Single | None | This rule contains a number of scales, though they are rarely intelligible.. |