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The vintage postcard is focusing on the Great Meteor Crater of Arizona. The image on the postcard is most likely depicting the meteor crater itself, showcasing its depth of 570 feet and width of over 4,000 feet. The postcard mentions that the meteorite or meteorites that caused the crater are buried thousands of feet below it. Visitors to the museum on the rim of the crater can see meteoritic fragments and attend lectures about the natural disaster that created this famous phenomenon.