Vintage Jerry Gilden Spectator Linen Coat Dress for Spring with Button Front and belt back from the 1950s; should fit small to large, it is a straight shift style. I love the big pockets on the front. Excellent condition. The small close-up shows the color the best.

Measured laid flat
Bust, Pit to Pit: 21"
Waist: with belt buttoned in the back: 21"
Hips: 23"
Shoulders: 16"
Length from Shoulder: 46.5"
Sleeve from shoulder: 20.5"