Vogue Special Design s-4501 vintage sewing pattern, dated 1954.  

One Piece Dress.

Four piece circular skirt joins the sleeveless bodice at waist-line. Wide, low neck-line, front and back. Shaped collar cut in one with bodice front, joins the back section at shoulders. 

Size 16:

Bust 34 inches / 87 cm

Hip   37 Inches / 94 cm

Pattern is UNPRINTED, checked complete, in good condition. Instruction sheet has some side tears, no information is missing. Pattern envelope has age tanning, store stamp, and is split halfway down one side.

More 1950s patterns here:

http://allthepreciousthings.com/collections/1950s