Shako

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A shako (/ˈʃækoʊ/, /ˈʃeɪkoʊ/, or /ˈʃɑːkoʊ/) is a tall, cylindrical military cap, usually with a visor, and sometimes tapered at the top. It is usually adorned with an ornamental plate or badge on the front, metallic or otherwise; and often has a feather, hackle, or pompom attached at the top.

Extensively used as an item of military headgear during the nineteenth and early twentieth centuries, the shako now survives as part of some ceremonial uniforms.