Pocket Kodak Primer, Eastman Kodak Co. (Rochester, NY), dated 1898, ~2¾"x3¾", 70pp
This is a tiny instruction booklet for the 1895 Pocket Kodak. The camera itself was only 2¼x3x4, so this booklet would have fit into the case or box for the camera. Similar small booklets were made in other sizes to fit in other sized cases or boxes.