Red white Polka dot Vintage 1980s does 1950s pinup girl Short dress

The story:

There are red and white polka dotted dresses out there and then there is this red and white polka dot dress right here. 

Well constructed, with a great bustline, cute knot-tie, tight wiggle dress silhouette and just that all around nautical theme feel with just a touch of sexiness. 

Pinned?: No.

Measurements:
All measurements are taken with the garment laid flat.
Please DOUBLE the measurements provided to get the approximate circumference measurements.
Alternatively, you can take a piece of your own clothing, lay it flat, measure it and make a comparison.

Approx. Size: S 

Bust: Up to 16.5in

Waist: Up to 13in. Fixed waist.

Hips: Up to 18.5in.

Total Length: 33.5in  

Armhole: 8in

Material: Not stated but likely a cotton mix. Light and summer-friendly.
Origin:  USA.
Tag:  Moda Int'l. Size 6.  
Lining: Unlined.
Transparency:  Seems opaque but as with more vintage garments, a slip will help to keep things decent ;)
Condition: Excellent.