The 4e50 stamp of Mozambique shows the carrack Santa Teresa, which was built as a "Nao da carreira da India" at Oporto in 1637. The "carreira da India" was the term used by the Portuguese for the round voyage made by their Indiamen between Lisbon and Goa in the days of sail. The "naos" or ships employed on this run were principally carracks and galleons, smaller vessels being only occasionally employed. The stamp described the Santa Teresa as a galeo (galleon), but as "galleon" and "carrack" were used as interchangeable terms for the same ships, the term "galeo" signifies merely a large ship of the time.
As the carrack was a large vessel of 800 to 2,000 tons, while the galleon seldom exceeded 1,600 tons, it is obvious that the Santa Teresa, with her tonnage of 2,400, was an exceedingly large carrack. She surpassed in size her contemporary Sovereign of the Seas, built for Charles I in the same year. The Santa Teresa had four flush decks and carried. 70 guns; she was the flagship of the Spanish fleet at the Battle of the Downs in 1639 when Van Tromp defeated the Spaniards. Flying the flag of Admiral Don Antonio Ocquendo, the Spanish leader, the Santa Teresa (also referred to as the Mater Theresa) was lost in the engagement.
SG559 Sea Breezes 6/64