Hey Moe... it is a fishing lead, but most likely a very old fishing lead none the less. Did you find it inshore from a wreck? That may help you associate how old it may be... Cool find. I recovered one inshore from the 1715 Fleet wrecks myself and it was a fishing weight. I have also recovered a small lead sounding weight and a very large (24lbs.) sounding weight from the 1715 Fleet. The sounding weights typically will have a divit in the base where a sample of the ocean bottom can be recovered at the same time as checking depth.
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