Size- No size tags, according to online size charts it is a S. See measurements,

Condition- Minimal signs of use/age. See pictures.

Measurements taken flat un-stretched:
Dress:
Shoulder to shoulder- 14.5"
Armpit to armpit- 17.5"
Waist- 15"
Hips- 16.5"
Shoulder to hem- 32.5"

Jacket-
Shoulder to shoulder- 17"
Armpit to armpit- 19"
Shoulder to hem- 13"
Sleeve length- 23.5"