The 11th Hydrological Congress, Rhodes 1930
Now showing: Aegean Islands - Postage stamps - 1930 - The 11th Hydrological Congress, Rhodes - 9 stamps.
1930
The 11th Hydrological Congress, Rhodes
25. September WM: None Perforation: 11
![[The 11th Hydrological Congress, Rhodes, type I]](https://www.stampworld.com/media/catalogue/Aegean-Islands/Postage-stamps/I-s.jpg)
![[The 11th Hydrological Congress, Rhodes, type I1]](https://www.stampworld.com/media/catalogue/Aegean-Islands/Postage-stamps/I1-s.jpg)
![[The 11th Hydrological Congress, Rhodes, type I2]](https://www.stampworld.com/media/catalogue/Aegean-Islands/Postage-stamps/I2-s.jpg)
![[The 11th Hydrological Congress, Rhodes, type I3]](https://www.stampworld.com/media/catalogue/Aegean-Islands/Postage-stamps/I3-s.jpg)
![[The 11th Hydrological Congress, Rhodes, type I4]](https://www.stampworld.com/media/catalogue/Aegean-Islands/Postage-stamps/I4-s.jpg)
![[The 11th Hydrological Congress, Rhodes, type I5]](https://www.stampworld.com/media/catalogue/Aegean-Islands/Postage-stamps/I5-s.jpg)
![[The 11th Hydrological Congress, Rhodes, type I6]](https://www.stampworld.com/media/catalogue/Aegean-Islands/Postage-stamps/I6-s.jpg)
![[The 11th Hydrological Congress, Rhodes, type I7]](https://www.stampworld.com/media/catalogue/Aegean-Islands/Postage-stamps/I7-s.jpg)
![[The 11th Hydrological Congress, Rhodes, type I8]](https://www.stampworld.com/media/catalogue/Aegean-Islands/Postage-stamps/I8-s.jpg)
| No. | Type | D | Color | Description |
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| 15 | I | 5C | purple rose | 15.90 | - | 12.72 | - | USD |
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| 16 | I1 | 10C | greyish brown | 15.90 | - | 12.72 | - | USD |
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| 17 | I2 | 20C | red | 31.79 | - | 12.72 | - | USD |
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| 18 | I3 | 25C | green | 42.39 | - | 12.72 | - | USD |
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| 19 | I4 | 30C | blue | 15.90 | - | 12.72 | - | USD |
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| 20 | I5 | 50C | dark brown | 1,059 | - | 31.79 | - | USD |
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| 21 | I6 | 1.25L | blue | 847 | - | 52.98 | - | USD |
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| 22 | I7 | 5L | reddish purple | 423 | - | 211 | - | USD |
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| 23 | I8 | 10L | brownish olive | 423 | - | 317 | - | USD |
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| 15‑23 | 2,877 | - | 678 | - | USD |
