For $3,500–$5,000 on the initiative of a researcher inquiring into their whereabouts
Text from Wikipedia, available under CC BY-SA 4.0.
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← Sergei Prokudin-Gorskii timeline
For $3,500–$5,000 on the initiative of a researcher inquiring into their whereabouts
Text from Wikipedia, available under CC BY-SA 4.0.
Captured 2026-08-21 from Wikipedia. The archived copy is preserved so this citation survives link rot.