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
Pamela hat Pamela hat The Chapeau à la Paméla, Pamela hat or Pamela bonnet described a type of straw hat or bonnet popular during the 1790s and into the first three quarters of the 19th century. It was named after the heroine of Samuel Richardson's 1741 novel "Pamela; or, Virtue Rewarded". While Pamela hats and bonnets underwent a variety of changes in shape and form, they were always made from straw. The mid-19th-century version of the Pamela hat was a smaller version of an early 19th-century wide-brimmed style called the gipsy hat. In 1793, the French actress Mademoiselle Lange, appeared in a