Material: Colored cardboard 11 in. x 14 in.; pencil, ruler and scissors.

Place the cardboard on the desk with the short edge toward the front.

One inch from the upper right-hand corner on the short edge make a dot.

Four inches from the corner make another; six inches from the corner make another; and nine inches from the corner make a fourth dot.

Proceed in the same way with the lower edge.

Draw lines connecting the dots. (Fig. 1.)

Three inches from the upper right-hand corner, on the long edge, make a dot.

Three inches from the upper left-hand corner, on the long edge, make a dot.

Draw a line connecting these dots.

Draw a similar line three inches from the lower edge of the cardboard.

Letter the upper row of rectangles from left to right as follows: A, B, C, D, B.

Letter the lower row of rectangles from left to right as follows: F, G, H, I, J. (Fig. 2.)

Letter the rectangle between B and J, R.

Draw the diagonals of rectangle A. Cut out the right-hand triangle. (Shaded one, Fig. 3.)

Do the same with F.

Trisect the four sides of B, and cut out the square O.

Do the same with rectangle G.

In rectangle C draw a diagonal from the upper left-hand corner to the lower right-hand corner, and cut a slit to within 1/4 inch from each corner.

In rectangle H draw a diagonal from the upper right-hand corner to the lower left-hand corner. Cut the diagonal to within 1/4 inch from the corners. Cut off rectangles, D, E, I and J.

Cut off the upper and lower corners of R, and cut a small triangle out of the left-hand edge of S. (Fig. 4.)

Lay the ruler on all the lines, and crease with a point of one blade of the scissors. Now bend, putting the point of A into slit in C, so that B is between A and C. Do the same with F, G and H. Put R inside.

Note. If so desired, Boxes I., II. and III. may be covered with plain-colored paper.