SOUTH AFRICA 1926 6d green and orange Official, SGO4South Africa 1926 6d green and orange "Orange Tree" Official, overprint type O1 (with stops), SGO4. Wonderfully presented in a block of 4 of the first printings of Government Official stamps from South Africa (Pretoria printing). A good quality used block of four with a pleasing and interesting central slightly doubled 'ROSEBANK CAPE' circular date stamp. The "Orange Tree" design is one of the most popular of the Union of South Africa stamps. Stanley