The Victorian Lady
5. Cut another piece of muslin—as long as the woman’s shoulder-to-floor measurement. Use one-half the width of the muslin. Drape the SB princess seam, to match the one on the CB piece, angling out as you move down past the hip line. When you reach the level at which you want to start the decorative poufing, pleat or pin-gather the SB princess seam of the CB piece into the SB princess seam of the SB piece.
6. Now that the poufing has opened up the inverted box pleat, you will need to control the CB seam of the pleat with a length of twill tape.