In Base Camp, members of T Patrol unpack the rum
ration before setting off on patrol. The rum comes from the Supply
Reserve Depot, hence the "SRD" on the jug. From the earliest
times up until the late 1960s -early 1970s the British Military
had a standard ration for rum and/or other alcoholic beverages.
The usual was one ounce per day of distilled alcohol.
According to regulations the rum ration was only to be issued under
the discretion of a divisional or equivalent commander. According
to W. B. Kennedy Shaw, LRDG Intelligence Officer, "In the first
year or so, till supplies in the Middle East ran short, the rank
of a patrol commander seldom fell below the equivalent
rank of a Major General!"