- 10 miles south of the Ohio River, near Lockburn, Ohio,U.S.A., 1948
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- 12 miles outside Aztec, New Mexico,U.S.A., February or April 13,
1948
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- White Sands Proving Grounds, New Mexico, U.S.A., March 25, 1948
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- Laredo, Texas, U.S.A., July 7-8 or August, 1948
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- Roswell, New Mexico, U.S.A., 1949
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- mesa, deep in the Sierra Madre Mountains, Mexico, 1949
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- Death Valley, California, U.S.A., August 19,1949
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- near Mexico City, Mexico, before 1950
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- Mojave Desert, California,U.S.A., January, 1950
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- remote pampas region, Bahia Blanca Province, Argentina, May 10, 1950
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- El Indio, Texas, U.S.A.-Guerrero, Mexico border, December 5-6, 1950
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