No size tag, but likely an XS-S. Mannequin is a 32,24,34 for reference.
The item "Rare Authentic Vintage Jean Paul Gaultier Madonna Cone Bra Mesh Lace Slip Dress" is in sale since Tuesday, June 13, 2017. This item is in the category "Clothing, Shoes & Accessories\Women's Clothing\Dresses". The seller is "thevtgfinds" and is located in Soledad, California. This item can be shipped worldwide.