Dollis Hill 3d Block of 8 with MIXED PHOSPHOR BANDS U/M

3d Block of 8 U/M with 2mm phosphor bands Under the Ink applied down Alternative rows of the sheet. These narrow bands tend to slip creating bands on the stamps of between 1/2mm and 2mm. A Fantastic Block. Ex The Edward Klempka Collection who was the Author of the DOLLIS HILL FIND