In May 2005, Hanson Aggregates Marine reported a metal object found on a dredger off Great Yarmouth. The best interpretation that WA were able to offer for the object was that it was the remains of an explosive harpoon, as used for whaling from the mid-nineteenth century. The object looks like part of the ‘knuckle’ of such a harpoon, which lies behind the explosive tip and houses the harpoon’s barbs. It is not clear why such a find would be made off Great Yarmouth.

Harpoon Photograph courtesy of Hanson Aggregates Marine.