American ladies! A girlfriend of mine is selling this snappy little number on ebay here.
It’s the What Katie Did Lulu corselette, as new condition, 38D. I own one myself, and absolutely swear by it - it’s my go to for any wiggle/pencil fit dress.
Bidding starts at $US60. Bargain!
(Just noticed she’s also selling these rather attractive Mary Janes … oh lala!)