That is the prettiest illustration of a Scarlet Runner Bean that I’ve ever seen!
I grow them most years for the Hummingbirds. The bean seeds themselves are magical, but I never grow enough as a food crop. Will have to reconsider. :)
According to Wiki, where I found it, it’s from an antique German book. I love those old volumes with illustrations of herbs, flowers, etc:
Prof. Dr. Otto Wilhelm Thomé
Flora von Deutschland,
Österreich und der Schweiz 1885, Gera, Germany