boarding-knife

The second tackle was then hove taut, and the jaw, with a large piece of blubber attached, was cut off from the body with a boarding-knife, a tool not unlike a cutlass blade set into a three-foot-long wooden handle.

The Cruise of the Cachalot Round the World After Sperm Whales Frank T. Bullen 1886

But what I did was this: the arms-room was next door: I lighted a candle, entered it, and swiftly armed myself with a sort of dagger, a kind of boarding-knife, a very murderous little two-edged sword, the blade about seven inches long, and the haft of brass.

The Frozen Pirate 1877