Ptolemy and Mercator: Culver Pictures; Ptolemy’s world map: Gianni Dagli Orti / Corbis; globe: Mountain High Maps ® Copyright © 1997 Digital Wisdom, Inc.; background on pages 16 - 19: The Complete Encyclopedia of Illustration / J.
Ptolemaios ja Mercator: Culver Pictures; Ptolemaiose maailmakaart: Gianni Dagli Orti / Corbis; gloobus: Mountain High Maps ® Copyright © 1997 Digital Wisdom, Inc.; taust lk. 16 — 19: ” The Complete Encyclopedia of Illustration ” / J.