ASTRONOMICAL INSTRUMENTS

Click on a thumbnail to see the full image

China 1953	China 1953	Germany 1981
Nicaragua 1985	Nicaragua 1985	Netherlands 1986
Portugal 1992	Portugal 1992	Portugal 1992
Portugal 1992	Portugal 1993	Portugal 1993
Portugal 1993	Portugal 1993	Faeroes 1994
Liberia 2000	Greece 2006	Peru 2007