SOUTH AFRICA
1910 Parliament to 1925 Airmail
POSTAGE STAMPS
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1913-24 King's Heads, SG 3-21
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½d, SG 3
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| SA893 |
| green group, reversed perforations, lower right corner block of six showing plate '3' in margin. Very fine mint or unmounted. Scarce. SG 3 |
| £175 |
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