This file is from a shared repository and may be used by other projects.
The description on its file description page there is shown below.
12325+29
Imperial War Museum - picture scanned by me Ian Dunster 17:23, 13 September 2005 (UTC) from: Tank Museum Guide. Part II - The Inter-war Period - Royal Armoured Corps Centre, Bovington - (No ISBN) and uncredited.
Scan is apparently based off this photo (KID 1534) on Imperial War Museum Collections. Most recent upload is from that version.