GREAT BRITAIN 1965 (VARIETY) 4D DEEP BLUE BLOCK IMPERF TO MARGIN
4d Deep Blue definitive block x 8, perf 15 x 14, from re-etched cylinders, whiter paper, multiple crowns watermark, with variety top pair imperforate to margin. Very scarce. Fresh and fine. Mint never hinged. SG576avar; SGS85c; SC359var
Note: the 4d Wilding definitive on whiter paper with multiple crowns watermark was first issued 18 October 1962. It was re-issued 28 April 1965 using re-etched cylinders from a new multipositive to give a deeper shade. The change was made deliberately to coincide with the increase of the first class letter rate from 3d to 4d
