Hand drawn horse chestnut. Original from Biodiversity Heritage Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2880392/free-illustration-image-botanical-horse-public-domainFree Image from public domain licenseHand drawn fresh chestnut. Original from Biodiversity Heritage Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2880187/free-illustration-image-biodiversity-heritage-library-branchFree Image from public domain license