Tšekkoslovakia
Näytetään: Tšekkoslovakia - Postimaksumerkit (1918 - 1992) - 1 postimerkit.
1957
The 250th Anniversary of Polytechnic Engineering Schools, Prague
25. toukokuu VM: Ei mitään Perforaatio: 11½
![[The 250th Anniversary of Polytechnic Engineering Schools, Prague, tyyppi RC]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/RC-s.jpg)
![[The 250th Anniversary of Polytechnic Engineering Schools, Prague, tyyppi RD]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/RD-s.jpg)
![[The 250th Anniversary of Polytechnic Engineering Schools, Prague, tyyppi RE]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/RE-s.jpg)
![[The 250th Anniversary of Polytechnic Engineering Schools, Prague, tyyppi RF]](https://swmedia-4cd6.kxcdn.com/media/catalogue/Czechoslovakia/Postage-stamps/RF-s.jpg)
| No. | Tyyppi | D | Väri | Kuvaus |
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| 1021 | RC | 30H | harmahtava musta | J. Bozek, Founder | (4.590.000) | 0,27 | - | 0,27 | - | USD |
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| 1022 | RD | 60H | monivärinen | F. J. Gerstner | (3.400.000) | 0,27 | - | 0,27 | - | USD |
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| 1023 | RE | 1Kc | karmiini ruskea | R. Skuhersky | (3.680.000) | 0,27 | - | 0,27 | - | USD |
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| 1024 | RF | 1.40Kc | monivärinen | Polytechnic Engineering Schools Building, Prague | (3.680.000) | 0,81 | - | 0,27 | - | USD |
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