SOUTH AFRICA
1910 Parliament to 1925 Airmail
POSTAGE STAMPS  -  1913-24 King's Heads, SG 3-21  -  ½d, SG 3
SA1724
blue-green group, wmk. inverted, blocks of six from all four corners of the sheet showing plate ‘5’ in margins. The watermark as typical from this shifted down straddling the horizontal perforations. Very fine mint or unmounted. Uncommon group. SG 3w
£300