If you can track it down, there’s an excellent five-part BBC television series (2007) — Edwardians in Colour: The Wonderful World of Albert Kahn — featuring the photographer’s work.
Residents of Dahomey (now Benin), photographer Frederic Gadmer, 1920.
In 1909, at the very dawn of color photography, the French banker Albert Kahn set out to visually document every culture of the global human family. With the fortune he had amassed selling securities from South African diamond mines and illegal war bonds to the Japanese, Kahn financed a team of photographers to spread across the world taking pictures. Over the next two decades, these artists and ethnographers produced over 70,000 photos across 50 countries, from Ireland to India and…
First Night History 
I watched the series at the time, and really enjoyed it. From this selection, my favouirte is the photo of the Dutch couple.
Best wishes, Pete.
(This is a duplicate comment, something seems to be slowing down…)
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It was so difficult to choose which one for the reblog. I wish the series was available on DVD. I’ve been waiting and hoping since it was first shown.
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