Classic Gunne Sax gown by Jessica McClintock.   Has a nylon back zipper closure plus 6 pearly buttons to the neck.  Fully lined body with sheer lace dot sleeves and upper bust.

Measurements

Neck:  14"

Shoulder:  13.5"

Sleeve:  23"

Bust:  32/34"

Waist:  24"

Hip:  full

Length:  54"

Label:  Gunne Sax.  Size 7, USA made

Material:  nylon, acetate, cotton, rayon

Fits like an XS.