Master E.S.
( fl c. 1450–1467).
German
engraver and draughtsman. He is named after the
initials on what are now recognized as the first
known engravings with a monogram. About 318
engravings, the earliest from c. 1450,
the latest dated 1466 and 1467, are attributed
to him, although his work is estimated to have
originally comprised about 500 engravings. Of
the surviving engravings, 95 are unica; for many
only two or three impressions exist. After
Israhel van Meckenem, he was the most
productive engraver of the 15th century.