The things you can find online (via Twitter). From the 16th century comes the manuscript of 'Giovanni Cadamosto, Herbal with treatises on food, poisons and remedies, and the properties of stones (Peutingerorum Liber Botanicus) (Harley MS 3736)'. As the pictures show the draftsmanship is tremendous but it is also interesting for its position somewhere between the stylization ans conventions of earlier ages with the drive towards naturalism (to draw form nature rather than copy from the ancients).