Vintage Miss Elliette Polka Dot Ruffle Hem Wrap Dress in Black/White, Size M

Vintage true wrap dress in a black/white polka dot print with white ribbon-trimmed ruffles at front closure and on collar. Matching fabric belt. Lined bodice/skirt and unlined, semi-sheer sleeves. Snap closure at bust. No material tag but feels like a poly-blend. Condition: good vintage condition. Missing the belt loop on the left side (though belt stays in place when tied) and one hook closure at the waist (there is another hook-and-eye closure that keeps the waist closed). Minor wear throughout including loose threads near white ribbon trims but polka-dot pattern and ruffle hem distract from such. Please note, this dress is missing a size label. I have estimated that this would likely fit a US size S or M based on waist size, but please see exact measurements below for best fit: 20.25” sleeve length 18.5” underarm to underarm 14.25” flat waist 21.5” flat hips 42” length