Discovered in one of the bulletins of the National Science and Media Museum in Bradford, this is a a very well done dossier on the history of colour photography.
This story explores the different approaches early inventors and entrepreneurs took in the race to develop a successful colour photographic process, from hand-colouring and the Lumière brothers’ autochrome to the first commercially successful ‘integral tripack’ system, Kodachrome.
https://www.scienceandmediamuseum.org.uk/objects-and-stories/history-colour-photography