From the post:
The colorized images you see here come from the NYPL’s large collection of late 19th century Japanese photography, taken by photographers like the Italian-British Felice Beato and his Japanese student Kimbei, who “assisted Beato in the hand-coloring of photographs until 1863,” then “set up his own large and flourishing studio in Yokohama in 1881.” The archive provides “a rich resource for the understanding of the political, social, economic, and artistic history of Asia from the 1870s to the early 20th century.” These images date from between 1890 and 1909, by which time much of Japan had already been extensively westernized in dress, architecture, and style of government.
Read more here.