Diane Von Furstenberg DvF vintage Bergen silk dress Multiple colors

Multicoloured DvF silk Bergen vintage dress, the dress itself is pure silk chiffon with a geometric print, the lining is 91% silk and 8% Lycra, V-neck at the back and front, lace at the bottom attached to the underdress but visible when worn, the broad straps are black and end in a bow feature. The dress simply slips on without a zip. Labeled a US size 10 but comes a bit smaller, I give the measurements, please compare with a garment that fits.
armpit to armpit 53 cm, waist 42 cm, length 115 cm (including the lace).
Very minimal signs of wear, none visible when worn.