Leaf 00013 (4r): the ship-and-tower woodcut demonstrating the sphericity of water — a sailor atop the mast sees the distant tower that is hidden from the deck, proving the Earth's curvature.Leaf 00085 (40r): the large full-page "Teorica alia" geometric diagram of the celestial sphere, with the equinoctial, ecliptic and eccentric circles around the poles of the prime mobile.Leaf 00120 (57v): the colophon naming Erhard Ratdolt of Augsburg and the date 1485, above a table of the printed symbols for the zodiac signs, planets and astronomical aspects.
