| USA 1967 (8 Mar) Space Cover OSO 3 ORBITING SOLAR OBSERVATORY Cape Canaveral
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| USA 1967 (8 Mar) Space Cover "OSO 3/ORBITING SOLAR OBSERVATORY/IMAGE OF SPACECRAFT" and "OSO-3 WILL STUDY THE STRUCTURE AND COMPOSITION/ OF THE SOLAR CORONA THROUGH X-RAYS, AND ATTEMPT/ TO DISCOVER THE ORIGIN OF SUN SPOT EXPLOSIONS TO/ PROTECT OUR FUTURE SPACE TRAVELERS" addressed to Sherry Hills NJ and affixed with 5c USA Flag cancelled "CAPE CANAVERAL FL/MAR 8/AM/1967/32920"
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• Item
#: INV-128324
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Pricing in AUD
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Within Australia
AU $5.00
(Includes GST $0.45)
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Outside Australia
AU $4.55
( approx US 3.05 )
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