Simplicity Sewing Pattern 8511 Sz 18 20 22 Easy To Sew Dress Jacket Vintage 1998. Vintage 1998 Simplicity Easy-To-Sew Sewing Pattern 8511 Women’s Size Y (18, 20, 22). Pattern is for a Dress and Jacket. Never used. Uncut. Outer packaging may show minor wear, inside contents are complete and in new condition. I have several vintage sewing patterns listed. If multiple patterns are purchased, shipping will be combined and any extra shipping charges will be refunded.