Wilding series
…is the afterglow time – 'blue' 20 sec., 'green' 10 sec., 'violet' 5 sec. – rather than the colour as such. In 1955 four large format high values – Castles – designed by L. Lamb were introduced. These were the first true British pictorials – previous designs, for example the 1953 Coronation issue, had all…