The passenger/cargo liner Britannia (1929) in the South Dock Lock, West India Docks, London

A port bow view, taken from across the lockside wide off the bow, of the passenger/cargo liner Britannia (1929) backing out of the South Dock Lock, West India Docks into Blackwall Reach, River Thames, London. She is passing through the raised bascule bridge that carries Prestons Road over the lock.