The back contains 1 scales of the following types:
| Type (click to view scale details) |
Range & Units | Numbered | Geometry | Location |
|---|---|---|---|---|
| Altitude | 0 - 90, Degrees | Every 5 degrees | Circular, concentric | None |
| Transcription | Translation | Notes | Type |
|---|---|---|---|
| غرض نقشيست كه تا باز ماند | The aim of the engraving is that it should remain after me. | In cartouche below shadow square | Miscellaneous |
| نمقه محمد مهدي اليزدي | Embellished by Muḥammad Mahdī al-Yazdī | At bottom edge | Maker's signature |