LYTTELTON PORT CO. LTD.

The Harbour Board’s white flag bore large arms occupying much of the field. Granted in 1961, they incorporated Lyttelton family features with Lord Cobham’s permission. The shield is quartered yellow and four white-and-blue waves, crossed by blue and red counterchanged so blue adjoins the first and fourth quarters and red the second and third. White crosses on the arms represent the Southern Cross. A flaming brazier in the first quarter denotes beacon services, a black fouled anchor in the fourth marine activities, and the waved quarters the sea.

White sea-lion supporters have golden fins and manes and each holds a boathook. A merman holding a single-masted galley forms the crest, above land surrounded by sea and the motto MORE ILLUSTRIOUS BY SERVICE. The reproduced scan muted the colours, particularly blue.

The later emblem represents the Christchurch–Lyttelton Road Tunnel portal opening towards the harbour, symbolised by three blue wavy bands. The flag was first observed over the company administration building on 8 June 1992. Dignan independently suggested a road through a chain-like stylised tunnel, and Rosanoski confirmed the tunnel interpretation from the 1991 company review.