Simplicity Designer's Pattern 8131; ©1949; One-Piece Afternoon Dress. The becoming high surplice gathers into the side seam. The slim skirt is superimposed in front by a diagonal flounce with turns under at the left side and ends at the right side seam giving a very slenderizing effect. The casual sleeves as in Version A, cover the elbow and end in two points while the short sleeves in Version B are merely notched at top.