What is a Blind Stamp?
A Blind Stamp (also known as embossments, chops, or dry stamps), are made by pressing a metal mold into the paper. The stamps used on prints are not inked, and can be seen to stand above the paperís surface. They usually contain the publisherís logo, or in some instances, the printerís logo. Typically there is a series of letters and numbers within the blind stamp uniquely identifying the picture.
The mark can usually be found in the lower right or lower left corner of the print and you can see it by holding the print at an angle to a light source.