Gorgeous 50s or possibly early 60s sun dress in pink and green floral pattern on white background.
The fabric has a sheen. Most likely rayon.
No label and I would say carefully home-made.
The sleeveless bodice has interesting detail of a band that edges neckline around to the lovely deep V-shape at the back. Has 2 pleats also at neckline on either side of band.
The full skirt is pleated at waistline.
Has original fabric belt and buckle. Closes with a metal zip at the side.
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