Stamps of Annam & Tonkin, A-T//value overprint
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postage
1888 1888b issue ovpted on stamps of French Colonies unwmk p. 14x13.5
| - | 1c on 2c | brn, buff | Commerce | 10.–100 | 10.–100 | |
| - | 1c on 4c | cl, lav | Commerce | |||
| - | 5c on 10c | blk, lav | Commerce |
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