Stamps, 20h denom
1 to 50 of 88
Czechoslovakia
postage1918 1918a issue unwmk imperf
| X | 20h | blgrn | Hradcany |
1918 1918b issue p. 11.5,13.5
| X | 20h | blgrn | Hradcany |
1919 1919b issue p. 13.75
| - | 20h | red | Hradcany |
1920 1920a issue p. 14
| X | 20h | dprose | breaking chains |
1920 1920b issue
| X | 20h | org | carrier pigeon & letter |
1926, Jun 1 1926b issue wmk. linden leaves p. 10v
| X | 20h | brnred | Karlstein Castle |
1927
| X | 20h | red | — | — |
1929, Apr 10 1929 issue unwmk
| X | 20h | red | arms of Czechoslovakia, p. 10 | |||
| - | 20h | red | arms of Czechoslovakia, p. 10v | — | — |
1945, Jul 16 Masaryk 1945 issue (no perf info)
| X | 20h | Masaryk | — | — |
1945, Aug 18 heroes (1945) p. 11.5x12.75
| X | 20h | red | Kapitán Otakat Jaroš |
1953, Jun 19 1953 issue (no perf info)
| X | 20h | viobrn | Klement Gottwald |
1954, May 1954 issue
| X | 20h | dlvio | nurse |
1955, May 25 1955 portraits issue - portraits (1955) p. 11.5
| X | 20h | lilbrn | Jakub Arbes |
1955, Jun 21 more 1st Spartacist Games issue
| X | 20h | dkblvio | woman athlete |
1955, Aug 8 animals (1955) p. 12x11.5
| X | 20h | Cyprinus carpio |
1955, Dec 15 public works
| X | 20h | dkgrn | railroad bridge |
1956, Jun 23 writers (1956) p. 11.5
| X | 20h | vio | Ludovit Stur |
1957, Jan 18 writers (1957)
| X | 20h | Karel Toman 1877-1946 |
1957, Aug 28 Tatra Mountains National Park issue
| X | 20h | Rupicapra rupicapra |
1959, Feb 14 sports (1959 Czechoslovakia) p. 11.75x11.25
| X | 20h | ltgraybl & dkbrn | hockey player |
1959, Nov 16 birds (1959 Czechoslovakia) p. 14
| X | 20h | multi | Dryobates major |
1960, Mar 21 castles (1960) p. 11.75x11.25
| X | 20h | brnorg | Kost |
1960, Jul 25 5-year plan issue p. 11.5x11.25
| X | 20h | multi | Hodonin Power Station |
1960, Aug 23 portraits (1960) p. 11.25x11.75
| X | 20h | redbrn | K. M. Capek Chod |
1960, Nov 21 flowers (1960 Czechoslovakia) p. 14
| X | 20h | multi | Doronicum clusii |
1961, Jan 20 3rd 5-year plan issue p. 11.25x11.75
| X | 20h | bl | rolling mill |
1961, Mar 6 space (1961) (no perf info)
| X | 20h | multi | Rocket launching |
1961, Sep 18 food (1961) p. 11.25x11.75
| X | 20h | multi | sugar beet cup saucer |
1961, Oct 25 Praga 62 issue p. 11.75x11.25
| - | 20h | multi | Orlík Dam & Kaplan turbine |
1961, Nov 27 butterflies (1961 Czechoslovakia) p. 14
| X | 20h | multi | Zerynthia hypsipyle |
1962, Feb 26 cultural p. 11.5
| X | 20h | dkbl | Skroup |
1962, Apr 24 animals (1962 Czechoslovakia) p. 11.25x11.75
| X | 20h | multi | polar bear |
1962, Dec 15 beetles (1962) p. 14
| X | 20h | Calosoma sycophanta |
1963, Mar 25 Umelecka Beseda 100th issue - cultural anniversaries (1963) p. 11.5
| X | 20h | multi | Guild Emblem |
1965, Mar 15 1965 space research issue p. 11.75x11.25
| X | 20h | multi | Maximum Sun-spot Activity |
1965, Apr 16 1965 Olympic victories issue p. 11.25x11.75
| X | 20h | multi | Horse Jumping |
1965, Oct 1965 towns issue p. 11.5
| X | 20h | multi | Nitra |
1966, Mar 21 locomotives (1966) p. 11.75x11.25
| X | 20h | sep | Ajax, 1841 |
1966, Jun 20 Naprstek Museum 100th issue - American Indians
| X | 20h | multi | Indian Village |
1966, Sep 26 space (1966) p. 11.25x11.75
| X | 20h | multi | First Meeting in Orbit Gemini 6 & Gemini 7 |
1967, Aug 30 flowers (1967 Czechoslovakia) p. 12.5
| X | 20h | multi | Miltonia spectabilis |
1968, Nov 18 caricatures p. 11.25x11.75
| X | 20h | multi | EHemingway |
1969, Sep 30 archaeological treasures p. 11.5x11.25
| X | 20h | multi | Bronze Belt Fittings |
1970, Oct 29 World Soccer Championship 1970 issue p. 11.25x11.5
| X | 20h | multi | emblem & flags |
1970, Nov 30 Intercosmos program (no perf info)
| - | 20h | multi | Dish Aerial |
1971, Aug 17 World Hunting Exhibition issue p. 11.75x11.25
| X | 20h | multi | ring-necked pheasant |
1972, Aug 29 Slovak Wirework p. 12x11.5
| X | 20h | multi | Wire Coil and Cockerel |
1973, Apr 12 Cosmonauts Day 1973 issue p. 11.75x11.25
| X | 20h | multi |
1973, Sep 5 50th Anniversary of Czechoslovak Hunting Organization issue - Hunting dogs (1973) p. 11.75x11.5
| - | 20h | multi | Irish setter |
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