Navy polka dot cap sleeve teacher dress vtg 80s

Make and age unknown, probably from the 80s. Labeled a size 12P, 100% polyester. Very good condition with no damage, elastic still has good stretch, no belt included Shoulder-Shoulder 23 Armpit-Armpit 21 Waist 15 unstretched Hips 20 Length 39 (All measurements taken flat and are approximate)