Public domain
INDIAN HEAD, MD. NAVY PROVING GROUND. RESIDENCE OF GEORGE SWANN, DAMAGED BY 16' SHELL THAT HIT ANOTHER IN SANDBANK, AND WAS DEFLECTED OVER COUNTRYAT 3/4 ANGLE
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Credit lineINDIAN HEAD, MD. NAVY PROVING GROUND. RESIDENCE OF GEORGE SWANN, DAMAGED BY 16' SHELL THAT HIT ANOTHER IN SANDBANK, AND WAS DEFLECTED OVER COUNTRYAT 3/4 ANGLE. 1916-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.