(Image removed from quote.)
This tank, as the Ram Mk II, had the turret removed and became possibly the first APC, the Kangaroo.
The image is of the Ram Mk I, as the Ram Mk II had the auxiliary turret and sponson door removed.
Um... I hate to break it to you, but that is the early version of the Mk II. You are probably being confused by the Mk V six-pounder in the turret, witch was only on the late version Ram Mk II. As that is not a two-pounder in the turret for it to be a Mk I.
Early production: Mk III QF 6 pounder gun (92 rounds). (Just an up-gunned Mk I.)
Late production: Mk V six-pounder. Auxiliary turret and sponson door removed. Browning .303 in (7.7 mm) machine gun fitted in ball mount.