Daniel Hopfer was a German artist who is widely believed to have been the first to use etching in printmaking, at the end of the fifteenth century. He also worked in woodcut. Although his etchings were widely ignored by art historians for years, more recent scholarship is crediting him and his work with "single-handedly establishing the salability of etchings" and introducing the print publisher business model.
Unlike most later prints, etched on copper plates, Hopfer's printed etching continued to use the iron plates he was used to working with in steel plate armour, the material he was trained in, and with which he continued to work.