Heliographic copier

Heliographic copier is a type of machine used to copy and reproduce images or drawings. It works by using a bright light source like the sun, a piece of paper with a special light-sensitive coating, and a special lens. The light from the sun shines through the lens and hits the light-sensitive coating on the paper. This makes a reusable image on the paper. This image can be removed from the paper and used again. This is a great way to make lots of copies of the same image quickly and easily!