https://chestofbooks.com/arts/photography/Practical-Photography-2/Chapter-LIV-Color-Photography-1909-Supplement-Autochrome-Process-Simplified.html
Chapter LIV. Color Photography. 1909 Supplement. Autochrome Process. Simplified Method Of...
1105. The only difficulty in the original method of developing Autochrome plates was the impossibility of correcting errors in exposure by modifying the...
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https://www.iphotocentral.com/news/article-view.php/1/297/277/1831/0/0/0
Newsletter - PhotoResearcher No. 44: The Autochrome in Imperial History
Newsletter - E-Photo Newsletter Issue #277 2/18/2026 - PhotoResearcher No. 44: The Autochrome in Imperial History
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