On the basis of stone designs and seals found in China, there is speculation that the Chinese may have produced a primitive form of print-the rubbing-about the 2nd century ce. They conceived not only the idea of multiplication but also the mechanical principle, the roller, which in more sophisticated form became the printing press. 3000 bce), who engraved designs and cuneiform inscriptions on cylinder seals (usually made of stone), which, when rolled over soft clay tablets, left relief impressions. The technique of duplicating images goes back several thousand years to the Sumerians (c. Engraved designs have been found on prehistoric bones, stones, and cave walls.

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Printing art prints