View of munitions ships waiting for convoy by a rail yard at Bedford Basin

A mine sweeper at work

A military guard in a sentry tower at the Prince Rupert shipyard and dry dock

Military guards at the Prince Rupert shipyard and dry dock halt cars to inspect passes

An anti-aircraft battery stationed at the Prince Rupert shipyard and dry dock

The anti-aircraft gun crew take up position at the Prince Rupert shipyard and dry dock