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last updated on: October 12, 2016
The original Dolphins were authorized for wear in March 1924. The officers insignia was to be a bronze, gold plated metal pin warn over the left-breast pocket. Enlisted qualified submariners were authorized to wear "silver silk" embroidered Dolphins on the right sleeve of their uniforms midway between the wrist and elbow. Dolphins could only be warn when actually serving aboard an active submarine. In 1941 submariners were authorized to wear at all times once qualified, even when assigned to other duties in the naval service. In 1947 Enlisted Dolphins, still a patch, were shifted from the sleeve to over the left breast pocket. Then in 1950, the current Dolphins, a bronze, silver plated pin was authorized by BUPERS regulation