I'm building a Scale Link Dennis 3-ton lorry with the intent in representing one used in support of the RNAS Squadron under CDR Sampson in the Dunkirk region. (I'm not sure the used Dennis vehicles, but why not?) I intend to paint it light gray as I understand that many early war vehicles were that color. Is this correct?
Would such a vehicle be under the control of the War Department and thus have the W^D mark with corresponding numbers or would the RNAS have their own markings? If the latter, what would they be?