Draw a square 5" sides. Draw another square 3" sides by measuring 1" from each side of first figure.

Place points ½" from each side of outside square and draw-oblique lines to angles of inside square as shown in drawing.

Draw triangles A, B, C, D, ¾" altitude. Note points of connection.

Cut out figure following the full outline.

Score on dashed lines in the corners and on the lines of inner square.

Fold sides upward and apply paste on under side of triangular flaps 1, 2, 3, 4, and fasten same on inside of tray.

Bend triangles A, B, C, D, out and downward as in sketch.

Punch holes with punch. Material: Tagboard.