IQSY logo

International Quiet
Sun Year (IQSY)
(1964-1965)


Below is a checklist of International Quiet Sun Year (IQSY) postal items (stamps, souvenir sheets, aerogrammes, postal cards, etc.). Catalog numbers, years of issue, and notes on the items featured are given when available. If readers know of additional information or images, please contact the authors using the e-mail addresses at the bottom of this page.

See also the following related topic:


CountryCatalog Number*Type of Item**Year of IssueNotes on Content
Argentina7721965
Argentina772+C98-C99 fdcOne stamp on FDC
ArgentinaNoneCachet on cover1965IQSY symbol
AustriaNoneCancel and cachet on cover1964IQSY symbol
Australian Antarctic TerritoryNoneCachet on cover1966IQSY symbol
Bulgaria14621965
Bulgaria1463
Bulgaria1464
Central Africa Republic341964
Cuba958 (Mi1020)1965
Cuba959 (Mi1021)
Cuba960 (Mi1022)
Cuba961 (Mi1023)
Cuba962 (Mi1024)
Cuba963 (Mi1025)
Cuba963a (BL26?)Imperforate SS1 (963)
Cuba963b (BL26?)Imperforate SS1 (963) changed colors
Czechoslovakia12891965
Czechoslovakia1290
Dahomey1961964
Dahomey197
EstoniaNoneCachet on cover1964IQSY-type sun symbol and IQSY in text
French Southern and Antarctic Territories241963
French Southern and Antarctic Territories24 proof stripColor proof strip
French Southern and Antarctic TerritoriesC6
French Southern and Antarctic Territories24+C6 fdcTwo stamps and cachet on FDC
Gabon1791965
Germany (East)745SS11964
Germany (East)746SS1
Germany (East)747SS1
Germany (West)None(Black and red) cancels and (ISQY symbol and Russia 2841) cachets on cover1964IQSY symbol
Germany (West)None(Black) cancels and (IQSY symbol) cachet on cover1964IQSY symbol
Ghana1641964
Ghana165
Ghana166
Ghana166aImperforate MS4 (4x 166)
Ghana186
Ghana186aMS12 (12x 186)
Ghana187
Ghana187aMS12 (12x 187)
Ghana188
Ghana188aMS12 (12x 188)
Hungary1659 (Mi2101A)
i1659 (Mi2101B)
1965
Hungary1660 (Mi2102A)
i1660 (Mi2102B)
Hungary1661 (Mi2103A)
i1661 (Mi2103B)
Hungary1662 (Mi2104A)
i1662 (Mi2104B)
Hungary1663 (Mi2105A)
i1663 (Mi2105B)
Hungary1664 (Mi2106A)
i1664 (Mi2106B)
Hungary1665 (Mi2107A)
i1665 (Mi2107B)
Hungary1666 (Mi2108A)
i1666 (Mi2108B)
Hungary1667 (Mi2109A)
i1667 (Mi2109B)
Hungary1668 (BL46A)
i1668 (BL46B)
SS1
ItalyNoneCachet on cover back1963IQSY symbol
Maldive Islands1471965
Maldive Islands147aMS9 (9x 147)
Maldive Islands148
Maldive Islands148aMS9 (9x 148)
Maldive Islands149
Maldive Islands149aMS9 (9x 149>
Maldive Islands150
Maldive Islands150aMS9 (9x 150)
Mali651964
Mauritania1761964
Mongolia3711965
Mongolia372
Mongolia373
Mongolia374
Mongolia375
MongoliaC6
MongoliaC7
MongoliaC8
Niger1381964
Niger138 proofDeluxe proof
Nigeria1731965
Nigeria173aMS12 (12x 173)
Nigeria174
Nigeria174aMS12 (12x 174)
PanamaC334a (BL36)
iC334a (BL37)
MS2 (C333-C334), changed colors on imperforate1965
Paraguay922 (Mi1522)
i922 (Mi1530)
Changed colors on imperforate1966
Paraguay926 (Mi1526)
i926 (Mi1534)
Changed colors on imperforate1966
Paraguay926a (BL79)
i926a (BL80)
SS1 (926), changed colors on imperforate
Poland1343 (Mi1606)1965
Poland1343a (Mi1607)1343 changed colors
Poland1344 (Mi1608)
Poland1344a (Mi1609)1344 changed colors
Poland1345 (Mi1610)
Poland1345a (Mi1611)1345 changed colors
Portugal9341964
Portugal935
RussiaNoneStamped envelope, stamp like 28391963
Russia28391964
Russia2839 fdcStamp on FDC
Russia2840
Russia2841
Russia2839-2841 fdcThree stamps and cancel on FDC
RussiaNoneCancel on stamped envelope1964IQSY symbol
RussiaNoneCachet on Elektron-1+2 launch cover1964IQSY symbol
Satellite Beach FL (U.S.)Local19??
SwedenNoneCachet on Nike-Apache and Nike-Cajun (sub-orbital) rocket launch cover1964IQSY symbol
Togo5001964
Togo501
Togo502
Togo503
Togo504
Togo505
Togo505aImperforate MS4 (502-505)
United StatesNoneCachet on OGO-1 launch cover1964IQSY-type sun symbol
United StatesNoneCachet on INTERPEX cover1964IQSY symbol
United StatesNoneCachet on cover1964ISQY symbol
United StatesNoneCachet on Explorer-30 launch cover1965IQSY acronym
United StatesNoneCachet (different) on Explorer-30 launch cover1965IQSY acronym
United StatesNoneCinderella on rocket mail cover1965IQSY symbol
United StatesNoneRocket mail cinderella SS11965IQSY symbol
Upper Volta1331964
Viet Nam (North)2891964
Viet Nam (North)290

*Scott catalog number, unless prefixed with Mi or BL for Michel; "i" prefix denotes imperforate version.
**FDC = first day cover; SS# = souvenir sheet, MS# = miniature sheet, where # = number of stamps in sheet, and the numbers in parentheses are the catalog numbers of the stamps in the sheet.


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Updated: 2008-07-30