He travelled to all the distant parts of Russian Empire. This is for example a dweller of Turkmenia, now Turkmenistan. Camels were the common way of transportation for cargo even when trains were introduced to locals by Russian government.
We had already before some photos of this photographer, who managed to make color photos of Russia 100 years ago in 1900-1910. It's amazing to see the life back there in full color. He had a special task to travel across all the Russian Empire (that's how Russia was called that times before Communism) and make thousands of such photos for a Royal Depositary. So he made literary thousands of color photos of Russia 100 years ago.