The Struve Geodetic Arc is a chain
of survey triangulations stretching from Hammerfest in Norway to
the Black Sea, through ten countries and over 2,820 km. This helped
to calculate the exact size and shape of the planet and marked an important
step in the development of earth sciences and topographic mapping. The
Struve is on the list of UNESCO World Heritage sites since 2005.
Both Russian triangulation points are situated on the
small Hogland Island, located in the Gulf of Finland.
Stamp
150 years of County Mail. A special service
created for correspondence in areas that did not have government-mail. The
first post office was established in the Zemstvo Vetluga County in 1865.
%20-%20C%C3%B3pia.jpg)
.jpg)
1 comments:
HELO THERE!
I found this website by chance;) Could You please tell me what is written on the back of the card in the left corner? Is there any publisher, logo, name, website or emial address to the producer? Best regards and thanks, Artie.
Post a Comment