Vintage 80’s dark‎ navy blue and cream belted dress M with belt

Vintage 1980’s navy blue day dress. Medium weight polyester with cream piping, and oversized balloon sleeves. button closure on back. Detached cream belt. Tag size 9/10 would fit a modern small/medium Please check measurements. Measured lying flat Chest: 19.5” waist: 11” (unstretched) Waist: 16” (stretched) Shoulder to bottom sleeve: 19” Shoulder to bottom: 40.5”