Able Seaman (occupation)
AB's often set up twistlocks
Loading a container into a container ship hold.
Bosun overseeing cargo operations
On the bridge
View from the bridge of an oil tanker.
Able seamen were in great demand in World War II.
A second mate instructs the crew on use of survival suits.
An able seaman (AB) doing preservation
Corrosion runs rampant aboard a merchant ship
Ordinary seamen (OS) swab the deck of a container ship.
Corrosion on the bow of an oil tanker