The back contains 8 scales of the following types:
| Type (click to view scale details) |
Range & Units | Numbered | Geometry | Location |
|---|---|---|---|---|
| Altitude | 0 - 90, Degrees of arc | Every 5 degrees | Circular, concentric | Upper right quadrant of outer circular on back of instrument. |
| Altitude | 0 - 90, Degrees of arc | Every 5 degrees | Circular, concentric | Upper left quadrant of outer circular on back of instrument. |
| Declination | Zodiacal divisions, equal or unequal | Arc | Upper right quadrant (inside circular scales) | |
| Sine/Cosine | 0 - 60, 1/60 of quadrant radius | Arc | Upper left quadrant (inside circular scales) | |
| Faces | 0° Aries - 30° Pisces, Astrological face | Every 10 degrees | Box | Box 'inside' the shadow square. Common site for triplicities, etc. |
| Terms | 0 Degrees of Aries - 30 Degrees of Pisces, Astrological face | Box | Box 'inside' the shadow square. Common site for triplicities, etc. | |
| Triplicities | Planet | Box | Lower left quadrant | |
| Triplicities | Planet | Box | Lower right quadrant | |
| Shadow square | 1 - 12, Fingers | Every 1 fingers | Box | Left hand vertical 'face' of the shadow square (in LL) |
| Shadow square | 1 - 12, Fingers | Every 1 fingers | Box | Left hand bottom face of the shadow square (in LL) |
| Shadow square | 1 - 7, Feet | Every 1 feet | Box | Right hand bottom face of the shadow square (in LR) |
| Shadow square | 1 - 7, Feet | Every 1 feet | Box | Right hand vertical face of the shadow square (in LR) |