704 Control number with control code
Geometry: text.
Definition
The number of the control is placed close to the control point circle in such a way that it does not obscure important detail.
The numbers are orientated to north.
Parameters
Font: Arial, 4.0 mm, non-bold, non-italic. Both control number and code may be bordered with a small white borderline (0.15 mm) to improve legibility if necessary.
Colour: upper purple (over black).