Date: January 5, 1897
Creator: Collis, Michael Francis
Description: Patent for a simply constructed puzzle with a difficult solution, "but may be accomplished by the exercise of care, skill, and ingenuity in the manipulation of the device" (lines 15-18). It is a rectangular box with eight balls, four of which fit into holes in the corners of the box. There are segmented walls surrounding the holes.
Contributing Partner: UNT Libraries Government Documents Department