| Cat. No. | Introduction | Obsolescent | Obsolete | Remarks |
| Section C.2 B.M.0165 B.M.0166 |
L. of C. A.7771 70/MG/159 15th May 1930 |
L. of C. A.9478 70/MG/198 17th August 1934 |
L. of C. C.2022 57/SA/1385 24th August 1944 |
With L.H. or R.H. feed blocks. Tank Pattern. Converted from Mk. I |
List of changes A 9478, GUNS, MACHINE, VICKERS .303-IN., Mk. IV B, - With No. 3 steam tube and Mk. I* steam tube keeper