Gerard David (ca. 1455–1523) — Archangel Gabriel; The Virgin Annunciate, ca. 1510.

Gerard David (ca. 1455–1523) — Archangel Gabriel; The Virgin Annunciate, ca. 1510.

GIF: Bill Domonkos, 2016

Image from page 981 of “A system of instruction in X-ray methods” (1918).