South West Africa 1923 KGV 1d "Af.rica" for "Africa" Positional

1923 KGV 1d red, Setting I, 14mm between, typographic print, variety "Af.rica" for "Africa" (SG 2c/CC 2e). VF/M/UM block of four proving the variety at position r20/6 in the interpanneau corner, variety pair UM, Scarce. (cv£185). See additional image.