Stamps of Australia - South Australia, Adelaide Post Office design
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postage
1899 1899 issue wmk. crown & SA close (no perf info)
| X | 1/2d | yelgrn | Adelaide Post Office |
1905 1904a issue p. 12x11.5
| - | 1/2d | ltgrn | Adelaide Post Office |
1906 1906 issue wmk. crown & single-lined A (WA) (no perf info)
| - | 1/2d | grn | Adelaide Post Office | — | — |
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