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" - 6 stamps.
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CS1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Panama/Postage-stamps/CS1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CT1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Panama/Postage-stamps/CT1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CU1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Panama/Postage-stamps/CU1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CV1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Panama/Postage-stamps/CV1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CW1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Panama/Postage-stamps/CW1-s.jpg)
![[The 4th Spanish-American Postal Congress - Issues of 1936 Overprinted "UPU", type CX1]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Panama/Postage-stamps/CX1-s.jpg)
| No. | Type | D | Color | Description |
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| 288 | CS1 | 5C | dark blue | Airmail | - | 0.53 | 0.27 | - | USD |
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| 289 | CT1 | 10C | reddish orange | Airmail | - | 0.80 | 0.53 | - | USD |
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| 290 | CU1 | 20C | carmine | Airmail | - | 1.06 | 1.06 | - | USD |
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| 291 | CV1 | 30C | dark purple | Airmail | - | 4.25 | 4.25 | - | USD |
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| 292 | CW1 | 50C | carmine rose | Airmail | - | 15.93 | 15.93 | - | USD |
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| 293 | CX1 | 1B | greyish black | Airmail | - | 21.24 | 15.93 | - | USD |
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| 288‑293 | - | 43.81 | 37.97 | - | USD |
