Harleyford, 1st ed., 1967. 232 pp., cold., frontis., + cold., & b&w photo-ills., + ills. D.j., 28 x 22cm. V.G.+ This Harleyford volume is the definitive publication on the subject of aircraft markings from the period 1912-1967 as it covers those of every country of the world and uses them to reflect the world-wide changes that have taken place over 50 years. It includes military and civil markings, gives precise dates of marking changes, and was the only book at the time to have produced 50 years of national markings in full colour. It has a wealth of photographs of aeroplanes and through its highly researched and thorough narrative it is the most educational book on the subject.