TO ENLARGE A SKETCH
Portion of Canvas Showing how to enlarge Sketch to scale.
The best method is to sketch on to the canvas, then rule up the design into a number of equal squares or rectangles, then using a chalk line divide the canvas into precisely the same number of spaces.
The rest is easy; it is only necessary to follow the original design, square by square, and map it out on the canvas.
The sketch should, of course, be in absolute proportion to the cloth. If it is square, any square is right. If, for instance, the cloth were 30 feet by 20 feet, the sketch should be 30 inches by 20 inches, or 15 inches by 10 inches, as most convenient.