Barrelman

Colloquialism for a lookout stationed in the masthead of a seavessel

Barrelman is in reference to a person who would be stationed in the barrel of the foremast or crow's nest of an oceangoing vessel as a navigational aid. In early ships the crow's nest was simply a barrel or a basket lashed to the tallest mast. Later it became a specially designed platform with protective railing.

This keyword could refer to multiple things. Here are some suggestions: