File:FMIB 49848 Cross section of Douglas fir pile from Station 6000, Dike 12, Mare Island, pulled April, 1920, showing ravages of Teredo navalis.jpeg
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FMIB_49848_Cross_section_of_Douglas_fir_pile_from_Station_6000,_Dike_12,_Mare_Island,_pulled_April,_1920,_showing_ravages_of_Teredo_navalis.jpeg (605 × 526 pixels, file size: 116 KB, MIME type: image/jpeg)