SOUTH AFRICA
1910 Parliament to 1925 Airmail
POSTAGE STAMPS
- 1913-24 King's Heads, SG 3-21
- ½d, SG 3
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| SA931 |
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| green group, reversed perforations. Upper right corner block of four showing plate '5' in margin. Hinged on margin stamps very fine unmounted. SG 3 |
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| £60 |
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