Now showing: Portuguese Guinea - Postage-due stamps (1910 - 1919) - 18 stamps.
1911
Overprinted "REPUBLICA"
WM: None Perforation: 1½ x 12
![[Overprinted "REPUBLICA", type A10]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A10-s.jpg)
![[Overprinted "REPUBLICA", type A11]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A11-s.jpg)
![[Overprinted "REPUBLICA", type A12]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A12-s.jpg)
![[Overprinted "REPUBLICA", type A13]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A13-s.jpg)
![[Overprinted "REPUBLICA", type A14]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A14-s.jpg)
![[Overprinted "REPUBLICA", type A15]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A15-s.jpg)
![[Overprinted "REPUBLICA", type A16]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A16-s.jpg)
![[Overprinted "REPUBLICA", type A17]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A17-s.jpg)
![[Overprinted "REPUBLICA", type A18]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A18-s.jpg)
![[Overprinted "REPUBLICA", type A19]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A19-s.jpg)
| No. | Type | D | Color | Description |
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| 11 | A10 | 5R | green/black | - | 0.26 | 0.26 | - | USD |
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| 12 | A11 | 10R | blackish green/black | - | 0.26 | 0.26 | - | USD |
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| 13 | A12 | 20R | brown/black | - | 0.26 | 0.26 | - | USD |
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| 14 | A13 | 30R | reddish orange/black | - | 0.26 | 0.26 | - | USD |
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| 15 | A14 | 50R | olive brown/black | - | 0.53 | 0.26 | - | USD |
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| 16 | A15 | 60R | purple brown/black | - | 0.79 | 0.53 | - | USD |
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| 17 | A16 | 100R | purple/black | - | 1.58 | 1.31 | - | USD |
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| 18 | A17 | 130R | blue/black | - | 1.58 | 1.58 | - | USD |
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| 19 | A18 | 200R | carmine/black | - | 1.58 | 1.58 | - | USD |
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| 20 | A19 | 500R | violet/black | - | 1.05 | 1.05 | - | USD |
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| 11‑20 | - | 8.15 | 7.35 | - | USD |
1919
Overprinted "REPUBLICA"
WM: None Perforation: 11½ x 12
![[Overprinted "REPUBLICA", type A20]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A20-s.jpg)
![[Overprinted "REPUBLICA", type A21]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A21-s.jpg)
![[Overprinted "REPUBLICA", type A22]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A22-s.jpg)
![[Overprinted "REPUBLICA", type A23]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A23-s.jpg)
![[Overprinted "REPUBLICA", type A24]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A24-s.jpg)
![[Overprinted "REPUBLICA", type A25]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A25-s.jpg)
![[Overprinted "REPUBLICA", type A26]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A26-s.jpg)
![[Overprinted "REPUBLICA", type A27]](https://www.stampworld.com/media/catalogue/Portuguese-Guinea/Postage-due-stamps/A27-s.jpg)
| No. | Type | D | Color | Description |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 21 | A20 | 10R | blackish green/black | - | 4.73 | 4.73 | - | USD |
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| 22 | A21 | 20R | brown/black | - | 5.25 | 5.25 | - | USD |
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| 23 | A22 | 30R | reddish orange/black | - | 3.68 | 3.15 | - | USD |
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| 24 | A23 | 50R | olive brown/black | - | 1.84 | 1.58 | - | USD |
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| 25 | A24 | 100R | purple/black | - | 1.58 | 1.31 | - | USD |
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| 26 | A25 | 130R | blue/black | - | 16.80 | 15.75 | - | USD |
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| 27 | A26 | 200R | carmine/black | - | 2.10 | 2.10 | - | USD |
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| 28 | A27 | 500R | violet/black | - | 15.75 | 15.75 | - | USD |
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| 21‑28 | - | 51.73 | 49.62 | - | USD |
