So I was just taking a look at the USDA pomological watercolors. In their words
" As a historic botanical resource, this collection documents new fruit and nut varieties, and specimens introduced by USDA plant explorers from the late 19th and early 20th centuries. The collection spans the years 1886 to 1942. The majority of the paintings were created between 1894 and 1916."
Here's the link
https://search.nal.usda.gov/discovery/collectionDiscovery?vid=01NAL_INST:MAIN&collectionId=81279629860007426
Lovely, and very fun, especially if you've always wanted to see a painting of a moldy orange...
https://search.nal.usda.gov/discovery/delivery/01NAL_INST:MAIN/12287865630007426