Pigment spectra, historical artwork
{"Image ImageDescription": "Pigment spectra, historical artwork. Early 20th Century colour plate showing of the spectra of various pigments. Published in 'Quain's dictionary of medicine' (3rd edition), by the Irish physician, Sir Richard Quain (1902).", "Image XResolution": "72", "Image YResolution": "72", "Image ResolutionUnit": "Pixels/Inch", "Image YCbCrPositioning": "Centered", "Image Copyright": "Science Photo Library"}