Acknowledgements

we would like to thank to:

• Mark Jacobs: private collector who directly initiated our project by noticing Finlay color negative scans in the collection of Library of Congress. Without his expertise and generous donation of Finlay taking filters this project would never be possible. Mark Jacobs passed away in 2022 and we miss him.
• Doug Peterson and Kenzie Klaeser, Digital Transitions: For letting us to work with scans made using DT Atom, a digitization device based on high-end PhaseOne camera, and detailed discussions about scanning using such an high-end setup.
• Bertrand Lavedrine, Muséum National d'Histoire Naturell: For several consultations on color dyes and other aspects of early color photography
• Kendra Meyer, National Museum of Natural History: For discovering Paget plates at the National Museum of American History and scanning examples for us.
• Sara Manco, National Geographic Society: For collaboration on stitching and color reconstructions of scans at the National Geographic Society
• Gorgio Trumpy: For sharing an expertise as well as data on dyes of Dufaycolor and autochorme
• Luisa Casella: For very useful discussions about permanence of Autochrome and the restoration of color dyes
• Hanin Hannouch and Janine Freeston: For kind invitation to present at the Consortium working group on Color Photography in the 19th Century and Early 20th Century: Sciences, Technologies, Empires.
• Jan Lovy (professor): For going through incredibly difficult procedure to borrow Epsion V850 scanner in New York we used to scan samples of Oscar Jordan's photographs
• Kirsten Carter, Matthew Hanson and William Harris, FDR Presidential Library & Museum: For letting us to scan several examples of Oscar Jordan's photographs
• Geoffrey Barker, Scott Wajon, Russell Perkings, State Library of New South Wales: For collaboration on color reconstruction of Frank Hurley's photographs and the State Library of New South Wales
• Lynn Brooks, Micah Messenheimer, Phil Mitchell, Helena Zinkham, Thomas Rieger, Library of Congress: For kind collaboration on color reconstructions of the American Colony
• Alain Schiebli: For discussions on digitizing autochromes back in 2007
• Ladislav Bezděk, Martin Frouz, Národní památkový ústav: For work on the first publication
• Victor Gerasimov: For scans of Paget plates from Bulgaria
• High Tift, Dan Smith: For discussions of their collections of early color photography and sharing their expertise in the area
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