This is an AMAZING vintage black satin bustier that I'd estimate to be from the 1950's or 60's. It is very much like the ones Bettie Page wore in the 50's on her bondage photo shoots.

The bustier is a glossy, smooth black satin with 6 rows of flexible boning sewn underneath the fabric. The bustier angles down at the sides to a low back with a sturdy black girdle mesh. There are two rows of metal hook-eye closures in back with 9 closures, all original, all functioning perfectly.
The top and bottom of the bustier is trimmed in black lace, also in excellent condition. Someone has hand sewn in some padding in the cups, could easily be removed or left as is. It laces up the front through 15 original black metal eyelets, and the lacing is sturdy and appears original.
This bustier is in absolutely prestine condition, and is a rare find! It's unusual to see a lace up front on these.

It does not have any garter tabs, though you could easily add some.

The tag inside has been removed, though I estimate this to be a Small/Medium, see measurements.

Bustier measures 13 inches long down the center front, 16 inches mid bust length, including lace trim.

Bust is difficult to measure perfectly since it is open in the back, though the front across measures 15 1/2 inches, double to be a 31" around bust measurement and it will stretch a couple inches further than that and can also be adjusted with the lacing in front. Best for a B cup.

Waist measured unstretched at smallest hook-eye setting and laces in front closed tight is 23" around, will stretch to 25" around.
Waist measured unstretched at largest hook-eye setting and laces in front closed tight is 24" around, will stretch to 26" around.
Bottom hem (hipline) measured unstretched at smallest hook-eye setting is 30" around, will stretch to 32" around.
Bottom hem (hipline) measured unstretched at largest hook-eye setting is 32" around, will stretch to 34" around.

So, in conclusion this will best fit a 31-33 inch bust, 23-26 inch waist and 31-34 inch hips.