Cocktail Pillbox 1950s Vintage Hats for Women for sale | eBay。Vintage Black Braided Straw Pillbox Hat with Mint Green Bow – 1950s Trebor Original VERY Rare Women’s Vintage Hat This image shows a vintage black braided straw pillbox or tilted beret hat accented with a bright mint green side bow. This item is a vintage 1950s Trebor Original millinery piece. It is designed as a structured toque or cocktail beret crafted from woven black raffia straw. The signature feature of this particular mid-century model is a prominent, asymmetrical mint green satin ribbon band that finishes with an elegant folded bow on the right side.