The one-flue harpoon or one-flue iron (sometimes "single" instead of "one" is used) is a type of harpoon used in whaling after its introduction in the early 19th century when it replaced the two-flue harpoon.
The one-flue harpoon or single iron (sometimes "single" instead of "one") is a type of harpoon used in whaling after its introduction in the early 19th century when it replaced the two-flue harpoon.