WW2 US Army OD Green Whistle

The WW2 US Army OD Green Whistle is a standard military signaling device issued to United States Army personnel during the Second World War. Constructed from durable metal and finished with an olive drab (OD) green coating for reduced visibility, this whistle was an essential tool for non-verbal communication in the field. Its primary functions included signaling commands, initiating movement, or alerting units in combat and training environments. The whistle features a simple cylindrical design with a lanyard attachment loop, allowing it to be carried easily on uniforms or equipment. Typical markings may include the manufacturer’s information or military contract numbers, depending on the production batch. Utilized across various Army branches, this whistle exemplifies the practical approach to equipment design during WW2, balancing functionality and durability. It remains a representative artifact of US military history and wartime communication practices.