Telescopes stamp catalogue

Royal Observatory of Belgium

Royal Astronomical Society 1820

Jules Verne

Carl Zeiss JENA 1846-1971

Carl Zeiss JENA 1821-1971

Space shuttle

Europa – Astronomy

100 years of Astronomical Society

Crux from Station Concordia

Mizusawa Latitudinal Observatory

Telescope

Halley's Comet

Comet Halley

50 years of the Effelsberg radio telescope

Science

Mt. Palomar observatory

Johannes Kepler

Anniversaries

The telecomman of nation

175 days in space

100 years geographical Association

Satellite Control Station Zamengo

25 years CAT

Astronomy

Telescope of Galilee

Day of the science

400th anniversary of the construction of the first telescope by Galileo Galilei

Telescope

Total Solar Eclipse 24 October

Europa – Astronomy

Hess Telescope

Sir Isaac Newton

Turn of the century

Harry Bayley Observatory

100 years of the Cordoba Observatory

100 years of postal service

25 years after the launch of the Hubble telescope

Exploring Mars and space

150 years of astronomical missions to observe the transit of Venus

Anti-Tuberculosis, Robert Koch

Telecom Companies

Halley's Comet

Telecommunications

Halley's Comet

Carl Zeiss JENA

Hubble Space Telescope

Europa – Astronomy

100 years of discovery of cosmic radiation

150 years Club Alpino Italiano

Meteorology

Halley's Comet

Webb Space Telescope

Physics Years

Transport and communications

World communication year

Telescope

Kandilli Observatory

Telescope at Matura

150 years National Observatory

Halley's Comet