Botanical-Medieval-Flowering-plant-with-butterfly. Flowering plants with large gray butterfly. Medieval botanical and horticulatural illustration. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.
Icones plantarum medico-oeconomico-technologicarum cum earum fructus ususque descriptione (Pictures of plants with their fruit and the use of medical- technological-economic description), Vol II, Ferdinand Bernhard,