60s little black Audrey Hepburn style dress

This dress is just amazing! The ultimate little black dress. It's such an Audrey Hepburn breakfast at Tiffany's dress. Vintage from the 60s. With 2 pretty black bows on the front chest area. Has 2 big pleats in the front I try to show in the pictures. Zips up the back. Original zipper was metal but it was broken, we had it replaced. Has no tags inside except the union tag.
Measurement while laying flat

 Bust 15"

Waist 12"

Hips 16.5"

Length armpit down 27".

This dress is very tiny like xsmall.