Everything coordinates here, from the hat to the shoes. This stylish older woman wears a swing coat (sometimes called a pyramid coat), which extends down from the shoulder out to a wide hem. It was a very popular style in the 1950s, although I have seen them most often in hip length versions.
The wonderful website vintagepatterns.wikia.com shows swing coats offered by a wide range of pattern companies, from low end Anne Adams to high end Vogue. This long coat would have required a lot of fabric—up to five yards of wide yardage depending on the size.
All the elements in this outfit—the swing coat, the small boxy hand bag, the flying saucer hat, were popular in the early to mid 1950s. I’m guessing that she found her coat in the early part of the decade, since lengths got shorter as the years progressed.
I love the look of three quarter length sleeves, but how useful are they in a coat? Doesn’t that swath of skin between her gloves and her sleeve get cold? But this looks like a woman who put style before comfort.