Life rings from RNLI-rescued crews:
There's one of these (next) at Chicamacomico on the Outer Banks, too. It looks like an iron lung, but it was once used in rescue, to pull crewmen to shore.
This is a breeches buoy. It was fired out to ships, attached to a line that was anchored on shore. The line was tied off on-board, then crew were shuttled to shore in the seat.
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