Vintage Sewing Pattern by McCall’s.
Sleeveless dress with inset in front of bodice and in front of four-gore, bell shaped skirt. Skirt is lined with interfacing fabric. Neck is square at front, V-shape at back. Neck and front may have applied bias bands of contrasting fabric, or fronts may be trimmed with buttons. Left side has zipper placket.
Pattern is unused and includes instructions. Envelope cover has one tear in bottom right (see photos) but is in overall excellent condition for an item this age.