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Smithsonian

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	Sign along Highway 40 Photograph Sign along Highway 40
	Traffic jam on the Congress Expressway Photograph Traffic jam on the Congress Expressway
	Telegram from Chicago businessman to the President Artifact Telegram from Chicago businessman to the President
	Howard Johnson’s Motor Lodge Ad Artifact Howard Johnson’s Motor Lodge Ad
	Washington, D.C., protest poster Artifact Washington, D.C., protest poster

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