Fishing knife

The fishing knife is a minor tool used when angling. It is a pocket knife that contains in addition to the knife blade, a disgorger and sometimes scissors.^[1] While sheath knives can be used for the purpose, they are not preferred.^[2] Henry Cholmondeley-Pennell, an inspector of fisheries, recommended additional implements to be kept inside the handle: a "pricker" for loosening tight knots, a minnow needle, a baiting needle, and suggested the knife to include, "last but not least", a corkscrew.^[3]

The convenience of one-handed operation of a switchblade design was advertised in the 19th century as an advantage for fishing (and hunting).^[4]

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  A modern fishing knife with a bottle opener
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  Fishing knife with additional tools, 19th century