THE ANGULAR PUZZLE.
Cut a piece of cardboard into the form of, and of equal proportions to, the figure given here, after which, produce, with the same, three successive pyramidal or angular boxes, alternately bearing the respective numbers of 7, 6, and 5 corners, still keeping the cardboard in one piece. After cutting the card half through at the dotted lines, so that it will bend more squarely, bring the ends of 1—2 and 3—4 together; bend the whole in the middle at 5—6: fold 1—2 and 3—4 over one another, and the six-cornered box is formed. By again placing the angular sections inwards, the box will be finished. If larger, gum the parts as you fold them, and a curious box will be the result; if covered with Dutch metal so as to conceal all the seams, it may be a puzzle-box indeed.
Fig. 99.