The Pictorial St. Louis plates were originally arranged in two-page spreads, but have been placed here on a grid beside, above, and below each other corresponding with the original perspective key. You can navigate between plates using the blue arrow buttons or use the dropdown map under the key tab.
Each plate can be dragged with the mouse and you can zoom in and out using the mouse wheel.
If there is more information available about the buildings in a particular plate, there will be a red dot. Clicking on the dot will open images and a description.