Now showing: Great Britain - Postage stamps (1920 - 1929) - 12 stamps.
1929
The 9th Congress of the Universal Postal Union in London
10. May WM: 16 Design: J. Farleigh Engraving: C. G. Lewis - Stampatore: Harrison & Sons Ltd. Perforation: 15 x 14
![[The 9th Congress of the Universal Postal Union in London, type CF]](https://www.stampworld.com/media/catalogue/Great-Britain/Postage-stamps/CF-s.jpg)
![[The 9th Congress of the Universal Postal Union in London, type CF1]](https://www.stampworld.com/media/catalogue/Great-Britain/Postage-stamps/CF1-s.jpg)
![[The 9th Congress of the Universal Postal Union in London, type CF2]](https://www.stampworld.com/media/catalogue/Great-Britain/Postage-stamps/CF2-s.jpg)
![[The 9th Congress of the Universal Postal Union in London, type CG]](https://www.stampworld.com/media/catalogue/Great-Britain/Postage-stamps/CG-s.jpg)
![[The 9th Congress of the Universal Postal Union in London, type CG3]](https://www.stampworld.com/media/catalogue/Great-Britain/Postage-stamps/CG3-s.jpg)
![[The 9th Congress of the Universal Postal Union in London, type CH]](https://www.stampworld.com/media/catalogue/Great-Britain/Postage-stamps/CH-s.jpg)
![[The 9th Congress of the Universal Postal Union in London, type CI]](https://www.stampworld.com/media/catalogue/Great-Britain/Postage-stamps/CI-s.jpg)
| No. | Type | D | Color | Description |
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| 170 | CF | ½P | yellowish green | (677500000) | 3.41 | - | 1.70 | - | USD |
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| 170A* | CF1 | ½P | yellowish green | Lying watermark | 45.43 | - | 34.07 | - | USD |
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| 170B* | CF2 | ½P | yellowish green | Inverted watermark | 28.40 | - | 11.36 | - | USD |
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| 171 | CG | 1P | red | (341000000) | 3.41 | - | 1.70 | - | USD |
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| 171A* | CG1 | 1P | red | Lying watermark | 113 | - | 68.15 | - | USD |
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| 171B* | CG2 | 1P | red | Inverted watermark | 28.40 | - | 17.04 | - | USD |
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| 172 | CG3 | 1½P | brownish purple | (751250000) | 3.41 | - | 1.14 | - | USD |
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| 172A* | CG4 | 1½P | brownish purple | Lying watermark | 68.15 | - | 28.40 | - | USD |
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| 172B* | CG5 | 1½P | brownish purple | Inverted watermark | 11.36 | - | 6.81 | - | USD |
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| 173 | CH | 2½P | blue | (26750000) | 22.72 | - | 13.63 | - | USD |
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| 173A* | CH1 | 2½P | blue | Inverted watermark | 1135 | - | 454 | - | USD |
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| 174 | CI | 1£ | black | Perf: 12 and watermark 16 | (61000) | 1135 | - | 681 | - | USD |
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| 170‑174 | Set (* Stamp not included in this set) | 1168 | - | 699 | - | USD |
