cerro tololo observatory chile |
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| navigate by keyword : 1983 aged ancient antique astronomy cerro chile cosmos device discovery dome editorial equipment exploration galaxy herschel lens mail mirror observation observatory optical paraguay philately planet postage postmark research retro science seal sky space stamp star technology telescope tololo universe vintage |
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| RUSSIA KALININGRAD, 19 APRIL 2017: stamp printed by Paraguay, shows Herschel`s telescope, Cerro Tololo Observatory in Chile, circa 1983 |
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