Keywords: FMIB 49869 Untreated square Oregon fir timber, San Franciasco, Pier 7, November 3, 1920 Radial surface showing erosion by Limnoria between.jpeg check categories 17 September 2015 3 Untreated square Oregon fir timber San Franciasco Pier 7 November 3 1920 Radial surface showing erosion by Limnoria between the harder part of the annual rings Subject Piling Civil engineering Weathering Tag Coasts 1921 Cite book Report on the San Francisco Bay Marine Piling Survey San Francisco Bay Marine Piling Committee San Francisco CA San Francisco Bay Marine Piling Committee 1921 1st Plate 34 Fig 1 San Francisco Bay Marine Piling Committee PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 49869 Images from the Freshwater and Marine Image Bank to check San Francisco Bay Marine Piling Committee Piles structural Weathering |