SOUTH AFRICA
1910 Parliament to 1925 Airmail
POSTAGE STAMPS  -  1913-24 King's Heads, SG 3-21  -  6d, SG 11
SA638
black and purple shade, wmk. inverted. Lower right corner block of six showing plate '1' in margin. Hinged on margin stamps fine unmounted. Scarce. SG 11w shade
£150