From the early 2000's ~ Victoria's Secret Stretchy Lace Black Mini Dress Nightgown ~ Off shoulder with long bell sleeves.
Made in Hong Kong of 100% nylon. Hand washable.
Labeled a size Medium. See measurements for more info. 

Chest ~ 38" 
Waist ~ 32"
Hips ~ 40"
Length from shoulder to hem ~ 31"

~Excellent Vintage Condition~ No issues. See photos for more information.