Fritillaries illustration from Les liliacées (1805) by Pierre-Joseph Redouté. Original from New York Public… https://www.rawpixel.com/image/501793/free-illustration-image-redoute-fritillaria-pierre-josephFree Image from public domain licenseVintage imperial crown flower illustration in vector https://www.rawpixel.com/image/561756/kaisers-crown-vintage-styleView licenseKaiser's crown by Pierre-Joseph Redouté (1759–1840). Original from Biodiversity Heritage Library. Digitally… https://www.rawpixel.com/image/263655/free-illustration-image-redoute-flower-pierre-josephFree Image from public domain licenseKaiser's crown flower botanical vector, remixed from artworks by Pierre-Joseph Redouté https://www.rawpixel.com/image/451943/premium-illustration-vector-crown-fritillaria-redouteView licenseCouronne Impériale (crown imperial) from La Plante et ses Applications ornementales (1896) illustrated by Maurice… https://www.rawpixel.com/image/2417463/free-illustration-image-art-nouveau-deco-maurice-pillardFree Image from public domain licenseCouronne Impériale (crown imperial) from La Plante et ses Applications ornementales (1896) illustrated by Maurice… https://www.rawpixel.com/image/2418606/free-illustration-image-art-deco-maurice-pillard-patternFree Image from public domain licenseCouronne Impériale (crown imperial) from La Plante et ses Applications ornementales (1896) illustrated by Maurice… https://www.rawpixel.com/image/2413771/free-illustration-image-pattern-art-nouveau-decoFree Image from public domain licenseBol van de keizerskroon (Fritillaria imperialis) (1796 - 1814) by anonymous https://www.rawpixel.com/image/13742826/bol-van-keizerskroon-fritillaria-imperialis-1796-1814-anonymousFree Image from public domain license