4 images of the vault at Richmond Hill. One image is of the inside ceiling structure of the lantern (in the book), one image is of an exterior view of the lantern (in the book), one image is of an exterior view of the lantern (not in the book), and one image is of the back view of the entire vault (not in the book). Includes a note on the verso of some of the photographs that says "Thornhill".

Two images of a Richmond Hill vault. One image is a variation of an image in the books of the lantern.