Entering an unfamiliar harbour presented some serious issues for a Captain, would the harbour be deep enough? Were there any shoals or obstacles that could prevent a safe passage? The hand lead-line offered some reassurance. It consists of a lead weight attached to a long line of rope, 20 fathoms (120 feet) in length. Knots in the rope indicated fathoms, so the leadsman could call out the depth. An indentation in the bottom of the lead weight was filled with tallow (fat) to try and determine the composition of the seafloor (sand and gravel would stick).
$50 Artifact adoption includes:
- 1 year adoption
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