https://www.philamuseum.org/objects/305221
Richard Hamilton, Trichromatic Flower Piece, 1973-1974 | Philadelphia Museum of Art
Prints, Color etching, engraving, and aquatint, from 1973-1974
richard hamilton1973 1974philadelphia museumtrichromaticflower
https://royalsociety.org/blog/2015/08/beating-the-bushes-for-the-origin-of-trichromatic-vision/
Beating the bushes for the origin of trichromatic vision | Royal Society
Jan Freyberg describes their favourite paper from the Royal Society archives
the bushestrichromatic visionbeatingoriginroyal