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
Top hat One such trick involving a top hat is the famous "Pulling a Rabbit out of a Hat" trick. Instances of this trick date back to Louis Comte who performed the trick in 1814. According to fashion historians, the top hat may have descended directly from the sugarloaf hat; otherwise it is difficult to establish provenance for its creation. Gentlemen began to replace the tricorne with the top hat at the end of the 18th century; a painting by Charles Vernet of 1796, "Un Incroyable", shows a French dandy (one of the "Incroyables et Merveilleuses") with such a hat. The first