Lot 41372 – 1974 4c red and black mint n.h. vertical strip of five with the lower stamp showing variety black omitted

1974 50th Anniversary of Broadcasting 4c red and black mint n.h. vertical strip of five with the lower stamp showing variety black omitted and the second stamp with partial omission, a very rare and visually appealing error of which only five strips existed and only two of the five are now known; cert. PFoSA (1980) (SASCC 356a, R280’000+, ca.£12’700).