Place paper so that the short edges will be parallel with the front of desk; bisect the back edge; four inches directly in front of this point place a point; with this as a center draw a two inch horizontal line, which shall be the upper edge of an oblong two by eight and one-fourth inches; draw the oblong.

On right and left sides of oblong, beginning at the upper edge, set off a one-fourth inch space, below it two two inch spaces, below these four one inch spaces; join all opposite points.

Continue the upper side of second square one inch to right and one inch to left; continue the lower side of the same square two inches to right and two inches to left; from the right end of last line draw a one inch vertical line; from the upper end of this line draw a perpendicular to the line one inch to the left; from the left end of this line draw a one inch vertical line.

Construct a similar figure on the left side of second square.

On the right and left sides of upper square and the four oblongs, construct one-fourth inch margins, cutting corners as in cube.

Transfer on cardboard to a scale of one to two; cut, crease, fold and glue.