Here is Butterick Pattern # 5209 UNCUT Misses Halter Dress from their Retro Vintage collection circa 1947 (a reqpoduction of a 1940's sewing pattern) in sizes 14, 16, 18 and 20. Halter or cap sleeve dress, below mid-knee length, has side zipper, fitted self-lined bodice and flared, gathered skirt.
Fabric: Lightweight Broadcloth, Lightweight Linen, Damask, Lightweight Satin.
The pattern and instructions are still factory folded. The envelope may show some creases from storage.