Tyrian purple by ancient authors. Not much is known about the subsequent steps, and the actual ancient method for mass-producing the two murex dyes has not yet been successfully reconstructed; this special "blackish clotted blood" colour, which was prized above all others, is believed to be achieved by double-dipping the cloth, once in the indigo dye of "H. trunculus" and once in the purple-red dye of "B. brandaris". The Roman mythographer Julius Pollux, writing in the 2nd century AD, asserted ("Onomasticon" I, 45–49) that the purple dye was first discovered by the philosopher Heracles of Tyre, or rather, by his dog, whose
HMS Tyrian (R67) pennant number F67. From August 1952 until 1956 she was part of the 2nd Training Squadron at Portland. In 1953 she took part in the Fleet Review to celebrate the Coronation of Queen Elizabeth II. In November 1956 "Tyrian" was placed in reserve at Chatham. Between 1957 and 1965 she was part of the Lisahally reserve. She was subsequently sold for scrap and arrived at Troon for breaking up on 9 March 1965. HMS Tyrian (R67) HMS "Tyrian" was a S-class destroyer built for the Royal Navy during the Second World War. "Tyrian" displaced at standard load and at deep