the poster that this incredible illustration is based on is extremely striking. but while searching for it, I also found earlier posters for conveying this message along with a corresponding one for summer, and I fucking love them. absolutely lovely graphic design work. (both are from 1924, artist is Austin Cooper)
the one I was looking for originally also has a summer variant. (artist is Frederick Charles Herrick: 'it is warmer below' is from 1927, 'it is cooler below' is 1926)
I also like Edward McKnight Kauffer’s London Underground posters, the 1923 Natural History Museum one is such cool piece of visual art
If you want to see some posters irl and you can visit London, the Transport museum in Covent Garden at the back has a permanent display of some and others get swapped out, including original paintings and sculptures! Also a big lithograph
