huge old iron ships chain, construction crane or industrial hoist hook

Enormous (19.5 inches long) old forged iron hook! This huge hook might be from ship's chain, a rigger's construction crane or an industrial hoist, we're not sure. It measures 19.5" high, 12" wide, 4" across the inside diameter of the top eye and about 4.5" across the opening of the hook.

This huge old chain hook has a patina of age and rust.