I came across this photo of models Sara Crichton-Stuart and Twiggy outside London's"Hung On You" boutique in 1966 wearing dresses that's very similar to one right now on Miss Sixties Vintage Fashion website. How often does this happen!
A very pop-art style shift dress. The colors are vibrant in blue, yellow, and red. Cuff at wrist closes with zippers and the label reads "Ranelle Fashion, Inc"