Keywords: BL 6 inch Armstrong gun on CP mounting plan diagram.jpg Plan diagram showing Armstrong BL 6-inch gun on Centre Pivot Barbette mounting as supplied to Australian colonies Instructions for 6 Inch Rifled Breech Loading Armstrong Gun and Automatic Centre Pivot Barbette Mounting <br>Downloaded from National Archives of Australia http //recordsearch naa gov au/scripts/Imagine asp B 4039825 circa 1880 s Armstrong Mitchell Elswick Works PD-Old BL 6 inch gun Mk V Gun-carriages BL 06 inch Mk 05 gun |