Dollis Hill 3d Lilac Mixed Phosphor Band Cylinder Block U/M

The stamps with phosphor bands printed over the ink show the normal dull printing of phosphor and the bands are clearly visible when viewed at a tangent to light. These printings are quite remarkable. Some sheets show different combinations of phosphor bands others phosphor bands of differing types with non-phosphor combinations. All of these printings are unique to the Dollis Hill trials. Cylinder Block 11 no dot I/E with Four stamps 4mm centre band and 5 stamps no phosphor.Ex Edward Klempka Author of the DOLLIS HILL FIND illustrated on page 29