Opera hat described as: Some sources have taken this to describe an early folding top hat, although it is not explicitly stated whether Dollman's design was specifically for male or female headgear. Dollman's patent expired in 1825. Operating from Poissy, Paris, France, around 1840, Antoine Gibus's design for a spring-loaded collapsible top-hat proved so popular that hats made to it became known as "gibus". They were also often called "opera hats" due to the common practice of storing them in their flattened state under one's seat at the opera, though the term can also refer to any tall formal men's hat. The
Jewish hat Jews. Modern distinctive or characteristic Jewish forms of male headgear include the kippah (skullcap), shtreimel, spodik, kolpik, kashkets, and fedora; see also Hasidic headwear. The shape of the hat is variable. Sometimes, especially in the thirteenth century, it is a soft Phrygian cap, but rather more common in the early period is a hat with a round circular brim—apparently stiff—curving round to a tapering top that ends in a point, called the "so-called oil-can type" by Sara Lipton. Smaller versions perching on top of the head are also seen. Sometimes a ring of some sort encircles the hat an inch