The Colour Standards Of The Ministry Of The Aircraft Production (1916 - 1945) R.A.F. - F.A.A. includes 30 different color paint chips that would be a vital asset to anyone trying to accurately paint a model of a British aircraft from this era.  Each paint sample is approximately 2.25 "s by .75 "s.  Also, included with this "Vitocharts" group of paint samples is a cross reference guide by Albion Scott LTD which gives the modeller the company specific reference number for each of these paint samples.  This color standard chart was published in 1978.