Folding Almanac, late 15th century, including calendar information and medical summaries, ca. &

Folding Almanac, late 15th century, including calendar information and medical summaries, ca. "late 15th century”, Wellcome Library,Public Domain

“Written in red and black, with initials in blue. With two carefully executed drawings in red and black of the ‘Vein-man’ and of the 'Astrological man’. […]”