Michael Jennings did a posting about the surprisingly long history of colour photography, and I put a bit of it on Samizdata and asked about the very early Russian colour photos Michael mentioned. A commenter immediately referred us to the photographs of a certain Sergei Mikhailovich Prokudin-Gorskii.

I found one photograph with an educational theme. It's called Group of Jewish Children with a Teacher:

This photograph was taken in Samarkand in 1911.