51st Signal Battalion Unit Crest (Semper Constans)
The distinctive unit insignias (DUI) are proudly worn by the 51st Signal Battalion, with the motto "Semper Constans," translating to "Always Constant." Orange symbolizes the Signal Corps in this DUI approved in 1926 for the 51st Signal Battalion. Unit crests, including these DUIs, are worn on both the Army Class A Service Green and the Army Service Uniform (ASU).
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