These were posted here a year or so ago. Fascinating nevertheless, especially considering that Kodachrome would not be invented till around the mid-thirties.
I was wondering if you read the article. What's interesting is that the originals were taken on a 3" x 9" ( 76 mm x 278 mm) black and white plate divided into three 3" x 3" regions each photographed through different color filters. The exposures were taken sequentially in rapid succession. Too bad he couldn't take all three simultaneously. Notice all the pictures are still life and how blurry the stream is in #2 in this series. Originally they were viewed by projection, using the same color filters.
These views were recreated digitally and involve considerable 'touch work' to compensate for limitations in the surviving negatives. I find the original technique more impressive than the digital recreation, though both are pretty awesome.
Especially when you consider that when these photographs were taken, neither the Russian Revolution nor World War I had yet begun.