1958 USA Geophysical Year Stamp sc#1107 sun solar disk hand UN (Item number: #602787331)

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1958 Geophysical Year Stamp of USA. #1107’s design was based on a photograph of the Sun, taken during the International Geophysical Year, an international scientific project. During the 18 months of the project, the Sun gave off tremendous bursts of energy – an event that was observed by project members...

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