Kaiken (dagger)

A kaiken (懐剣) is a 20–25 cm (7.9–9.8 in) long, single or (very rarely) double-edged Japanese knife^[1] usually without ornamental fittings housed in a plain but lacquered mount.

^ Stone, George Cameron (1999). Glossary of the Construction, Decoration and Use of Arms and Armor in All Countries and in All Times. Dover Publications. pp. 405–. ISBN 978-0-486-40726-5.

[Stone1999-1] Stone, George Cameron (1999). Glossary of the Construction, Decoration and Use of Arms and Armor in All Countries and in All Times. Dover Publications. pp. 405–. ISBN 978-0-486-40726-5.

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