R.O.F. : the story of the Royal Ordnance Factories 1939-1948 / by Ian Hay Royal armoured corps : weapons : Ordnance Q. F. and S.A. 2-Pr. marks IX and X (or IX A and X A) Royal armoured corps : weapons : Ordnance Q.F. and S.A. 6-Pr. gun Military Training Pamphlet. no. 35. Part 14. Royal Armoured Corps. Weapons. Ordnance Q.F. & S.A. 6-Ponder Gun Military Training Pamphlet. no. 35. Part 9. Royal Armoured Corps. Weapons. Ordnance Q.F. and S.A. 2-Ponder. Marks IX and X (or IX A and X … British Ordnance Muskets of the 1830s and 1840s : George Lovell's Legacy / by Adrian Roads ; with contributions from De Witt Bailey
