Illustration of Iliad, XI.26 :

Serpents of cyanus writhed up toward the neck, three on either side,
like rainbows that the son of Cronos hath set in the clouds, a portent for mortal men.

Homer. The Iliad with an English Translation by A.T. Murray, Ph.D. in two volumes. Cambridge, MA., Harvard University Press; London, William Heinemann, Ltd. 1924

British Library, Burney MS 86
fol 107v

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