Butterfly sword

Single-edged blade

The butterfly sword is a short dao, or single-edged sword, originally from southern China, though it has also seen use in the north. It is thought that butterfly swords date from the early 19th century. Several English language accounts from the 1840s describe local militia in Guangdong being trained in the "double swords", short swords with a hook extending from the guard, and fitting into a single scabbard.

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