This photograph was published in the After the Battle magazine.The issue was number 21 and relates to Gibraltar completely. Since then I have found out through various sources mainly my brother Ian who is an avid Gibraltar Military Historian, that these tanks where stationed in Gibraltar during WW2.Apparently military records show that a full squadron of 15 tanks was available together with it's corresponding personnel.Some time later during WW2 these tanks where replaced by Sherman tanks.
Gibraltar Tank Squadron shoulder patch . http://www.afterthebattle.com