BESSEL, Friedrich Wilhelm, Almanya, Nikaragua, SSCB, 2 pul, 1 zarf |
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Issued by Germany on June 19, 1984, on his 200th birthday bessel.jpg; 19 Haziran 1984 200.doÄŸumyılında Almanya'da issued by Nicaragua in 1994 as part of a series depicting astronomers bessel2.jpg; Astronom Tasvirleri serisinin bir parçası olarak 1994 Nikaragua'da issued by the Soviet Union (an envelope) bessel3.jpg SSCB'de zarf olarak
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