Bicorne

: Descended from the three-cornered tricorne , the bicorne was widely adopted by European and American officers around the 1790s.

: While it mostly disappeared after World War I, it survives today in certain ceremonial dress, such as for the British Army, the Italian Carabinieri, and diplomats. DIY Crafting Guide bicorne

: Worn front-to-back. This became the standard for most military and naval officers after 1800. : Descended from the three-cornered tricorne , the

If you're looking to make one for a costume or collection, here are common methods: : Descended from the three-cornered tricorne

: Worn side-to-side (parallel to the face). Napoleon famously wore his this way to be easily spotted on the battlefield.