Simplicity 1817; ©1956; Misses' One Yard Skirt for 54" Fabric: Views 1, 2, 3 show straight skirt with side zipper opening. V. 1 has center front seam with extension at lower edge that laps and fastens with 3 buttons. V. 2 features shaped flap at upper left front and top-stitched vents at lower edges of side seams. V. 3 has vents at lower edges of side seams, detailed with a small button-trimmed tab at each vent.