What does 1/0 colour, 2/1 colour or 4/4 colour mean?
1/0 colour
The front side is printed in one colour. The reverse side is unprinted.
1/1 colour
The front and reverse sides are printed in one colour.
4/0 colour
The front side is printed in four colours (multi-coloured). The reverse side is unprinted.
4/1 colour
The front side is printed in four colours (multi-coloured). The reverse side printed in one colour.
4/4 colour
The front and reverse sides are printed in four colours (multi-coloured).
2/0 colour
The front side is printed in two colours. The reverse side is unprinted.
2/1 colour
The front side is printed in two colours. The reverse side printed in one colour.
5/0 colour
The front side is printed in five colours: four colours (multi-coloured) plus a spot colour. The reverse side is unprinted.
5/1 colour
The front side is printed in five colours: four colours (multi-coloured) plus a spot colour. The reverse side printed in one colour.
5/4 colour
The front side is printed in five colours: four colours (multi-coloured) plus a spot colour. The reverse side printed in four colours (multi-coloured).
5/5 colour
The front and reverse sides are printed in five colours: four colours (multi-coloured) plus a spot colour.