The graduations in prismatic compass

i) are inverted

ii) are upright

iii) run clockwise having 0° at south

iv) run clockwise having 0° at north

- 1
  
  (i) and (iii)
- 2
  
  (i) and (iv)
- 3
  
  (ii) and (iii)
- 4
  
  (ii) and (iv)

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