Draw rectangle A, B, C, D, 10"x3".

Space and draw lines across at distances indicated in the drawing, and extending lines 2, 7, and 3, 6, to form side of rectangles R, R.

Draw flaps 1, 2; 3, 4; 5, 6; 7, 8; each ¼" from the sides of the rectangles.

Draw the tongue x, ½" wide, measuring 1¼" from each side of rectangle.

Draw slot-line S, ½" long and ½" from side as shown in drawing.

Cut around figure on full lines.

Score and fold on dashed lines, and split open line S, for the tongue.

Fold sides of box so that scorings remain on outside.

Fold flaps outward, and fasten corners of box with floss, as shown in sketch. Material: Tagboard.