Rule, Regula, Pointer and Alidade Images
Alidade Image:
| Date | ca. 1660 |
| Maker | Muḥammad Mahdī |
| Place | Persia |
| Material | Brass |
| Inventory no. | 46886 |
| Acquisition | Presented by J. A. Billmeir in 1957 |
Alidade
| Appearance | Tip | Sights | Pinholes | Notches | Description |
|---|---|---|---|---|---|
| Double-ended, original. | Simple | Rigid | Double | None |
Inscriptions
| Transcription | Translation | Notes | Type |
|---|---|---|---|
| [to the left of the central hole] | [ pending ] | None |