The 11th International Railway Congress, Madrid - Blue Control numbers on back 1930
Now showing: Spain - Postage stamps - 1930 - The 11th International Railway Congress, Madrid - Blue Control numbers on back - 6 stamps.
1930
The 11th International Railway Congress, Madrid - Blue Control numbers on back
10. May WM: None Engraving: F.N.M.T. Perforation: 14
![[The 11th International Railway Congress, Madrid - Blue Control numbers on back, type CL]](https://www.stampworld.com/media/catalogue/Spain/Postage-stamps/CL-s.jpg)
![[The 11th International Railway Congress, Madrid - Blue Control numbers on back, type CL1]](https://www.stampworld.com/media/catalogue/Spain/Postage-stamps/CL1-s.jpg)
![[The 11th International Railway Congress, Madrid - Blue Control numbers on back, type CL2]](https://www.stampworld.com/media/catalogue/Spain/Postage-stamps/CL2-s.jpg)
![[The 11th International Railway Congress, Madrid - Blue Control numbers on back, type CL3]](https://www.stampworld.com/media/catalogue/Spain/Postage-stamps/CL3-s.jpg)
![[The 11th International Railway Congress, Madrid - Blue Control numbers on back, type CL4]](https://www.stampworld.com/media/catalogue/Spain/Postage-stamps/CL4-s.jpg)
![[The 11th International Railway Congress, Madrid - Blue Control numbers on back, type CL5]](https://www.stampworld.com/media/catalogue/Spain/Postage-stamps/CL5-s.jpg)
| No. | Type | D | Color | Description |
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| 449 | CL | 5C | light blue | (25000) | 11.72 | - | 5.86 | - | USD |
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| 450 | CL1 | 10C | rose | (25000) | 11.72 | - | 5.86 | - | USD |
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| 451 | CL2 | 25C | blue | (25000) | 11.72 | - | 5.86 | - | USD |
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| 452 | CL3 | 50C | violet | (25000) | 35.15 | - | 14.06 | - | USD |
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| 453 | CL4 | 1Pta | green | (25000) | 70.30 | - | 29.29 | - | USD |
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| 454 | CL5 | 4Pta | grey | (25000) | 70.30 | - | 29.29 | - | USD |
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| 449‑454 | 210 | - | 90.22 | - | USD |
