Shadow square
| Type: | Shadow square | 
| Style: | Tangent/Cotangent | 
| Geometry: | Box | 
| Unit of measurement: | Fingers | 
| Numbered: | Not numbered | 
| Repeats: | 1 times | 
Scale located on: Tympan, Womb or Back .
Location(s) detail:
| c: | Right hand bottom face of the shadow square (in LR) (c) | 
Inscription(s):
| Type: | Scale label | 
| Content: | ظل اصابع مستوي | 
| Translation: | Level shadow [scale] of fingers | 
| Language: | Persian | 
| Script: | Nashki | 
| Notes: | |
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