Lot 66318 – 1888 1/2d dull green small study of overprint varieties now regarded as forgeries by SG

1888 1/2d dull green small study of overprint varieties now regarded as forgeries by SG, incl. with top overprint inverted in mint pair and single, and without stop incl. double overprint on two stamps in used strip of three (cert. BPA 1993 as genuine), double ovpt mint single, ovpt inverted mint single, plus normal mint singles (4) and block of four, a great lot for the specialist.