Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged 1941
Muri Bhalissa: Kosta Rica - Bolol tal-posta - 1941 - Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged - 7 bolol.
1941
Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged
2. June WM: Xejn Perforazzjoni: 12
![[Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged, Tip ER]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ER-s.jpg)
![[Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged, Tip ER1]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ER1-s.jpg)
![[Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged, Tip ER2]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ER2-s.jpg)
![[Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged, Tip ER3]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ER3-s.jpg)
![[Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged, Tip ER4]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ER4-s.jpg)
![[Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged, Tip ER5]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ER5-s.jpg)
![[Airmail - Costa Rica-Panama Boundary Treaty. Overprinted "Mayo 1941 - Tratado Limitrofe Costa Rica - Panama" and Surcharged, Tip ER6]](https://www.stampworld.com/media/catalogue/Costa-Rica/Postage-stamps/ER6-s.jpg)
| Le. | Tip | D | Kulur | Deskrizzjoni |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 275 | ER | 5/20C | blu | - | 0.27 | 0.27 | - | USD |
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| 276 | ER1 | 15/20C | blu | - | 0.27 | 0.27 | - | USD |
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| 277 | ER2 | 40/75C | vjola | - | 0.27 | 0.27 | - | USD |
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| 278 | ER3 | 65/1C/Col | karminju | - | 0.55 | 0.55 | - | USD |
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| 279 | ER4 | 1.40/2Col | blu ċar | - | 3.27 | 3.27 | - | USD |
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| 280 | ER5 | 5Col | griż iswed | - | 13.10 | 13.10 | - | USD |
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| 281 | ER6 | 10Col | kannella ħamrani | - | 13.10 | 13.10 | - | USD |
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| 275‑281 | - | 30.83 | 30.83 | - | USD |
