Silver (contraband) spike, very rare and important. in Winter Park, FL

Silver (contraband) spike, very rare and important. 220 grs, 7-1/2" long. At various times since at least the 1950s, locals have found coins and small silver ingots in the vicinity of a nuclear power plant on the east coast of Florida, undoubtedly evidence of a Spanish shipwreck in the ocean nearby, and like all Spanish ships, this 1 apparently had contraband like this piece, which was cast from pure silver and delicately hammered into the ship to be retrieved later by the smuggler who know just which spike was the "one," with moderate surface corrosion but still straight and solid and with head and point still intact, a unique item with very rare provenance. Recovered from