B.S. 22154. Sand dunes 15 
miles south of Cabo San Antonio* 
Lavalle, Buenos Aires, Argentina. 
November 7, 1920. 
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B.S. 22155. Sand dunes 15 miles 
south of Cabo San Antonio. Lavalle, 
Buenos Aires, Argentina. 
November 7, 1920. 
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B.S. 22156. Ocean beach 15 mil 
below C a bo San Antonio. Lavalle, a 
Buenos Aires, Argentina. 
November 7, 1920. 
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