Butterick 5138 vintage sewing pattern, dated ca.1950.
Enchanting Evening Gown:
Bouffant evening gown in the romantic mood. Bodice fastens halter fashion, has cuff detail at decollete neckline. Resplendent skirt billows out from the waistline. (A) matching stole. Lace or eyelet banding. (B) Ribbon banding.
Size 14:
Bust 32 inches / 81 cm
Waist 26 inches / 66 cm
Hip 35 inches / 89 cm
Pattern is unprinted, unused, in factory folds. Envelope is in excellent condition for age; has some tiny wear holes on one edge.
More 1950s patterns here:
https://allthepreciousthings.com/collections/1950s