Whalemen's harpoons. Fig. 1. Improved harpoon or toggle-iron now in use
Fig. 2, 3. First form of toggle-iron made by Lewis Temple
Fig. 4. One-flued harpoon with hinged toggle. Fig. 5. One-flued harpoon
Fig. 6. Two-flued harpoon
Fig. 7. Toggle-iron invented by Provincetown whaleman; not in use
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