The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU" 1937
Now showing: Panama - Postage stamps - 1937 - The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU" - 10 stamps.
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CI1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CI1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CJ1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CJ1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CK1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CK1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CL1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CL1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CM1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CM1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CN1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CN1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CO1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CO1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CP1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CP1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CQ1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CQ1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CR1]](https://www.stampworld.com/media/catalogue/Panama/Postage-stamps/CR1-s.jpg)
| No. | Type | D | Color | Description |
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| 278 | CI1 | ½C | orange | - | 0.26 | 0.26 | - | USD |
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| 279 | CJ1 | 1C | dark green | - | 0.26 | 0.26 | - | USD |
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| 280 | CK1 | 2C | carmine | - | 0.26 | 0.26 | - | USD |
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| 281 | CL1 | 5C | dark blue | Simon Bolivar | - | 0.53 | 0.26 | - | USD |
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| 282 | CM1 | 10C | dark purple | - | 0.79 | 0.26 | - | USD |
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| 283 | CN1 | 15C | light blue | F. Garcia y Santos | - | 5.30 | 3.18 | - | USD |
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| 284 | CO1 | 20C | red | - | 1.59 | 1.59 | - | USD |
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| 285 | CP1 | 25C | dark brown | Christopher Columbus | - | 2.65 | 1.59 | - | USD |
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| 286 | CQ1 | 50C | reddish orange | "Resolute" (Liner) in Gaillard Cut | - | 8.48 | 8.48 | - | USD |
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| 287 | CR1 | 1B | greyish black | - | 12.72 | 10.60 | - | USD |
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| 278‑287 | - | 32.84 | 26.74 | - | USD |
