A picture of Alim Khan (1880-1944), <a href="https://en.wikipedia.org/wiki/Emir" class="extiw" title="en:Emir">Emir</a> of <a href="https://en.wikipedia.org/wiki/Bukhara" class="extiw" title="en:Bukhara">Bukhara</a>, taken in 1911.
This is one of the earliest color photographs in existence and was originally taken by <a href="//commons.wikimedia.org/wiki/Sergei_Mikhailovich_Prokudin-Gorskii" class="mw-redirect" title="Sergei Mikhailovich Prokudin-Gorskii">Sergei Mikhailovich Prokudin-Gorskii</a> as part of his work to document the Russian Empire. It was taken using three black-and-white exposures, with red, green and blue filters respectively, long before color photographic printing existed. The three resulting images were projected using color filters to create a color projection. More recently, the Library of Congress has scanned Prokudin-Gorskii's work and contracted with other firms to produce high-resolution color images from the black and white scans.
<bdi><a href="https://en.wikipedia.org/wiki/en:Sergey_Prokudin-Gorsky" class="extiw" title="w:en:Sergey Prokudin-Gorsky"><span title="Russian chemist and photographer">Sergei Prokudin-Gorskii</span></a>
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<p>Taken from the Library of Congress' website and converted from TIFF to PNG. 
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<a rel="nofollow" class="external text" href="http://memory.loc.gov/pnp/ppmsc/03900/03959u.tif">TIFF file from LOC</a>