Butterick 4532 vintage sewing pattern, dated circa early 1960s.
One Piece Dress:
Slim dress with contrast yoke and full length sleeves, has square neckline and button trim.
Size 12 T:
Bust 32 inches / 81 cm
Waist 25 inches / 64 cm
Hip 34 inches / 86 cm
Pattern is UNCUT and factory folded (printed pattern). Envelope has age tanning, spotting, wear and tear around edges.
More '60s patterns here: