I am not sure if this is the correct Forum topic but here it goes...
Does anyone know what the shell colors were for the British 6" Howitzer? The only reference I could find was this photo from the Ian Hogg book on Allied Artillery of WWI.
Be the same as other shells ie 18 pounders - that's an HE shell so yellow overall with green band to denote Amatol filling, red crosses to denote 'filled'. Fuse and driving band brass