Lot 30454 – 1966 Landscapes 4d mint nh right marginal block of four, stamp with the FACE VALUE OMITTED caused by paper fold

1966 Landscapes 4d mint nh right marginal block of four with the upper right stamp with the FACE VALUE OMITTED, the lower right stamp with the FACE VALUE AND QUEEN’S HEAD OMITTED, caused by a pre-printing paper fold with the omitted portions printed on the reverse of the sheet margin, a unique and spectacular variety