When an ad is to be printed in two colors,sometimes two separate art boards are made (one for each color),and sometimes the second image is glued onto a piece of clear plastic that is placed on top of the first image.The clear plastic is called the:

Question

Quizplus · Accepted Answer

The production artist places crossmarks in the corners of the base art and then superimposes crossmarks on the transparent overlay precisely over those on the base art. This registers the exact position of the two layers of art in relation to one another.

When an Ad Is to Be Printed in Two Colors,sometimes