Certainly seems like it and, to add fuel to the fire, surely the headgear to which Green Hat/Yellow Hat originally referred is properly known as a side hat. A forage cap is actually one of those jaunty little jobs that Gurkhas and some members of the Rifles wear!
Jack
PS Re Blacksheep's "Can you imagine the Navy without bell bottoms and flat hats, eh? Answer me that." Answer: whatever turns you on .....
