Shadow square
| Type: | Shadow square |
| Geometry: | Box |
| Unit of measurement: | Feet |
| (Numbering) starts at: | 0 |
| (Numbering) ends at: | 12 |
| Numbered: | every 3 |
| Divided every: | 1 (Feet) |
Scale located on: Tympan, Womb or Back .
Location(s) detail:
| d: | Right hand vertical face of the shadow square (in LR) (d) |