outside of the right sleeve, midway between the wrist and elbow until 1947 when it was shifted to above the left breast pocket. In 1943 the Uniform Regulations were modified to allow enlisted men, who were qualified for submarine duty then subsequently promoted to commissioned or warrant ranks, to continue wearing the enlisted submarine insignia until they qualified as submarine officers when they were entitled to wear the officers submarine pin. A 1950 change to Uniform Regulations authorized the embroidered insignia for officers (in addition to pin-on insignia) and a bronze, silver-plated, pin-on insignia for enlisted men (in addition to the embroidered device). Other insignia In addition to the Submarine Warfare insignia there are several special insignia. Since 1943 the Submarine Medical insignia has been awarded to medical officers of the Navy Medical Corps qualified in submarine warfare and medical expertise. The Submarine Engineering Duty insignia is issued to Engineering Duty Officers who have been designated as qualified in submarines through a program administered by the Naval Sea Systems Command and was first awarded in 1950. The Submarine Supply Corps insignia has been awarded to members of the Navy Supply Corps who have qualified as Supply Officers on board U.S. submarines since 1963. Following the tradition of the World War II patrol pin, the silver SSBN Deterrent Patrol insignia is worn by both officer and enlisted members of SSBN crews in recognition of their sacrifice and hard work in completing strategic patrols. The badge depicts a with superimposed Polaris missiles, below which is a scroll with slots for up to six stars. One gold star marks each patrol completed. A silver star marks five patrols. Upon completion of 20 patrols, a gold patrol pin is authorized. Unofficial insignia The person on active duty, officer or enlisted, with the most deterrent patrols is presented with the Neptune Award. That person retains the award until someone else attains more patrols than the current holder or until he retires and it goes to the member with the next highest number of patrols. Submarine verse of the Navy Hymn Two sets of lyrics for the Submarine verse of the Navy Hymn have been written. The Reverend Gale Williamson wrote the following verse, which is generally associated with ballistic missile patrols: Bless those who serve beneath the deep, Through lonely hours their vigil keep. May peace their mission ever be, Protect each one we ask