Special Mark

A Special Mark, as defined by the International Association of Lighthouse Authorities, is a sea mark used in maritime pilotage. It is recognisable by its yellow colour and X, (often referred to as a St. Andrews Cross) top-mark. It has a distinctive sequence of various flashes that does not match any other navigational mark flashes in its vicinity.

Read more about Special Mark:  Purpose, Other Uses

Famous quotes containing the words special and/or mark:

    ... there has been a very special man in my life for the past year. All I’ll say about him is that he’s kind, warm, mature, someone I can trust—and he’s not a politician.
    Donna Rice (b. c. 1962)

    Immediately aware that power had gone forth from him, Jesus turned about in the crowd and said, “Who touched my clothes?”
    Bible: New Testament, Mark 5:30.