15th century manuscript

de bene esse: literally, of well-being, morally acceptable but subject to future validation or exception

The Wellcome Library has acquired a gorgeous 15th century manuscript with fold-out illustrations relating to astrology and medicine. Previously unknown to scholars - in fact, it turns out to have been owned by eccentric English poet Edith Sitwell.

http://blog.wellcomelibrary.org/2014/01/the-enigma-of-the-medieval-almanac/