Alfred Sung Dress - Size 6?

NWOT- Renowned Canadian designer Alfred Sung. Excellent condition. Sample dress. Purple formal dress. Built in cups (could easily be removed if desired). Size tag information rubbed off. Measurements: waist 14 inches, PTP across back 16 inches, and length from top of shoulder to bottom hem about 38.5 inches. 100% polyester. Dry clean only. Fully lined. Bow at back of neck is removable. Neck closure is a snap and a hook as shown.