Bolex H16 Reflex
3 3/8" x 6 2/8": folds out to 20" wide x 12" tall. New York: Paillard Incorporated (1957).

This sales brochure for the H-16 Reflex lists the features of the camera and viewing system; it's illustrated with photos and drawings and includes a list of available RX lenses. When the brochure is completely unfolded, one side is devoted to the H-16 Reflex, while the other side lists accessories and advertises the Bolex Reporter magazine.