Missouri Hwy #3 & 2nd St, Callao, MO

Callao Oil Company’s Conoco Filling Station, Callao, Missouri, circa 1940.

Callao Oil Company’s Conoco Filling Station, northeast corner of Missouri State Highway No. 3 and 2nd Street, looking north, Callao, Missouri, circa 1940.

Photo courtesy of Danette Miller.

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