https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13994571
A snake, slender and brown in colour, with black and tan speckled markings between two blue lines, which run the length of the back. Watercolour, ca. 1795.
Original public domain image from Wellcome Collection
Public DomainFree CC0 image for Personal and Business use