SOUTH AFRICA
1910 Parliament to 1925 Airmail
POSTAGE STAMPS
- 1913-24 King's Heads, SG 3-21
- ½d, SG 3
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| SA949 |
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| blue-green group, upper left corner block of six showing plate '6' in margin, in addition light but distinct offset on reverse. Very fine mint or unmounted. SG 3b |
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| £60 |
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