The World's Columbian Exposition of 1893, Chicago: entrance to the Transportation Building. Chromolithograph with gouache after a painting by J.R. Key, 1894.

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Credit

The World's Columbian Exposition of 1893, Chicago: entrance to the Transportation Building. Chromolithograph with gouache after a painting by J.R. Key, 1894. Attribution-NonCommercial 4.0 International (CC BY-NC 4.0). Source: Wellcome Collection.