Belarus, Estonia, Finland, Latvia, Lithuania, Moldova, Norway, Russia, Sweden, Ukraine - Struve Geodetic Arc

"The Struve Arc is a chain of survey triangulations stretching from Hammerfest in Norway to the Black Sea, through 10 countries and over 2,820 km. These are points of a survey, carried out between 1816 and 1855 by the astronomer Friedrich Georg Wilhelm Struve, which represented the first accurate measuring of a long segment of a meridian. This helped to establish the exact size and shape of the planet and marked an important step in the development of earth sciences and topographic mapping. It is an extraordinary example of scientific collaboration among scientists from different countries, and of collaboration between monarchs for a scientific cause. The original arc consisted of 258 main triangles with 265 main station points. The listed site includes 34 of the original station points, with different markings, i.e. a drilled hole in rock, iron cross, cairns, or built obelisks." 

Source: UNESCO World Heritage

WANTED: I am looking for Latvia Struve Geodetic Arc postcard - anyone can help? Thanks.

Postcard 1 - SWEDEN
A multi-view postcard showing all of Sweden UNESCO World Heritage including Struve Geodetic Arc in the bottom middle picture. Thanks to Jeanette of Finland. Will be great to get a single view postcard in the future.

Postcard 2 - NORWAY - Hammerfest
Fuglenes, Hammerfest (1187-001) Struve Geodetic Arc  in Finnmark, Norway with aurora borealis in the sky. Thanks to Joey of Norway.

Postcard 3 - RUSSIA - Gogland Island
Hogland (1187-016), Z Gogland, Tochka Z, Kingisepp, Leningrad Oblast in Russia. A Russian Struve Geodetic Arc site. Thanks to Galina of Russia.

Postcard 4 - UKRAINE - Staraya Nekrasovka
Staraya Nekrasovka or Staro-Nekrassowka (1187-034), Odessa Region in Ukraine. Nice stamps of lighthouse used. Thanks to Veronika of Ukraine.

Postcard 5 - LITHUANIA
Struve Geodetic Arc of Lithuania. Thanks to Niina of Finland.

Postcard 6A - FINLAND - Oravivuori
Puolakka Oravivuori (1187-012) Korpilahti, Länsi-Suomen lääni in Finland. View of Oravivuori of Finland with commemorative stamp of Struve Geodetic Arc. Thanks to Heidi of Finland.

Postcard 6B - FINLAND - Alatornion Kirkko Church
Tornea Alatornion kirkko (1187-011) of Tornio, Lapin lääni, Finland. Struve Geodetic Arc goes through 10 European countries with 6 stations in Finland. This station of Alatornion Kirkko Church is one of them. View of the location of the church overlooking the river into Sweden. Nice stamps. Thanks to Sini of Finland.

Postcard 6C - FINLAND - Aavasaksa
Aavasaksa 66.23.52N, 23.12.31E, Finland with Struve Geodetic Arc map in Finland. Thanks to Dubbis of Finland.

Postcard 7A - ESTONIA - Stamp sheet showing map of Struve Geodetic Arc
Postcard of Tallinn, Estonia with stamp showing the map of Struve Geodetic Arc. Thanks to Heidi of Estonia.

Postcard 7B - ESTONIA
Dorpat Tartu Observatory (1187-019) View of Tartu Observatory. Nice stamps used. Thanks to Elina of Estonia.

Postcard 8A - BELARUS
Struve Geodetic Ac in Belarus. Thanks to Byasanich of Belarus.

Postcard 8B - BELARUS
Same postcard of Belarus. Thanks to Anna of Minsk, Belarus.

Postcard 9 - MOLDOVA
Punctul Geodezic Rudi is the only UNESCO World Heritage site of Moldova. Thanks to Katerina of Moldova.

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