South West Africa 1923 KGV 4d Type I Plate No1 Corner Pair VF/M

1923 KGV 4d orange & green, Setting I, 14mm between, typographic print (SG 5/CC 5). PLATE NO1 CONTROL CORNER PAIR, VF/M from bottom right corner. Fresh, lightest prior hinge trace. Scarce, only 1200 control pairs ever existing (only 300 sheets printed, ie only 300 possible each corner). (cvR4000). See additional image.