Engraving in the modern sense refers to a type of intaglio printmaking, where an image is carved into a plate, ink is rubbed into the image, and transferred to paper. This form of engraving was developed simultaneously in Germany and northern Italy during the 15th century, with the earliest examples attributed to two German craftsman known only as Master E.S., and the Master of the Playing Cards. But engraving as a practice is much older, dating back to the common practice in ancient cultures of creating cylinder seals, small cylindrical stones with an image engraved on their surface such that rolling it across wet clay would leave a relief of the carved image behind.