Tag: air mail
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The Remarkable Story Behind America’s Forgotten Concrete Arrows
When you stumble across one of these (roughly) 150 concrete arrows, they don’t look like much. Four rectangles and a triangle flush against the ground. Some are the size of a Cadillac. Some are the size of a school bus. Almost crumbling edges and surfaces cracked like alligator skin. This isn’t a result of shoddy…
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