Je retrouve plus le message exact, mais c'était ce lien :
30 Rare Color Photos of the Russian Empire from 100+ Years AgoTwistedSifter Sergey Mikhaylovich Prokudin-Gorsky (August 30, 1863 – September 27, 1944) was a Russian chemist and photographer best known for his pioneering work in color photography of early 20th-centur…