<P> Gunnery sergeants also serve as senior staff non-commissioned officers in military staff sections and headquarters and service companies and headquarters batteries at battalion / squadron, regiment / group, and division / wing headquarters levels . Typical gunnery sergeant billets in combat support companies and battalion, regiment, and division headquarters are: Personnel Administration Chief, Staff Secretary Personnel / Administration Clerk, Administration Assistance Chief, Division Reproduction NCO, Equal Opportunity Advisor, Human Affairs NCO, Career Planner, Intelligence Chief, Operations Chief, Operations Assistant, Watch Team NCOIC, Schools Coordinator, MAGTF Plans Chief, Cinematography Specialist, Logistics Chief, Embarkation Chief, Infantry Weapons Chief, Analyst and Review Fiscal Chief, Information Systems Maintenance Chief, Public Affairs Chief, Communications - Electronics Maintenance Section Chief, Radio Chief, Wire Chief, Motor Transport Chief, Battery Motor Transport Chief, Roadmaster, Assistant Roadmaster, Maintenance Chief, Assistant Maintenance Chief, Management Team Inspector, Engineer Equipment Chief, and Mess Manager . </P> <P> In Command Element, Combat Logistics Element, and Aviation Combat Element organizations, gunnery sergeants serve in basically similar positions of responsibility, authority, and accountability as their Ground Combat Element counterparts, with perhaps slightly different titles, such as Division / Branch Chief / NCOIC or Department SNCOIC (Staff Non-Commissioned Officer - In - Charge) in the aircraft maintenance department of a Marine aircraft squadron . Non Fleet Marine Force (or other operating forces) assignments may include supervisory or staff positions in recruiting, drill instructor, Marine Security Guard, Naval ROTC instructor or service school instructor, and major / joint / combined headquarters commands . </P> <P> The rank of gunnery sergeant in the Marine Corps was established by the Navy personnel act of March 3, 1899 (30 Stat . L., 1009) reflecting the duties of Marines in ship's detachments . The original insignia was three chevrons point up with three straight "ties" with an insignia of a bursting bomb over a crossed rifle and naval gun . From 1904 to 1929 the insignia went to three stripes only over a bursting bomb on top of crossed rifles . In 1929, like the rank of first sergeant, two "rockers" were added beneath the stripes with the same insignia in the middle . In 1937 the middle insignia was dropped . The rank was replaced by technical sergeant in 1946 until restored in 1959, when the crossed rifles insignia were added to Marine chevrons . </P> <P> The qualifications and selection of gunnery sergeants in the "Old Corps" was explained in congressional testimony in 1912: </P>

Where did the rank gunnery sergeant come from