Coat of arms of Tristan da Cunha
The coat of arms of Tristan da Cunha was granted on 20 October 2002. Arms. The arms consist of a shield featuring four albatrosses in a blue-and-white mirror image design. The central diamond-shaped charge is based on a charge from the arms of the da Cunha family to which Admiral Tristão da Cunha belonged, after whom the island is named: "cunha" in Portuguese means "wedge", and blue wedges feature in the da Cunha arms as a canting charge. The two supporters are Tristan rock lobsters, which are found in the  waters surrounding the island. The crest features a naval crown and a Tristan da Cunha longboat. The motto is “Our faith is our strength”. Flag. The arms feature on the flag of Tristan da Cunha, granted on the same date as the arms, and on the defaced Union Flag used by the Administrator. Previous arms. Prior to 2002, as a dependency of Saint Helena, Tristan da Cunha used their coat of arms.