Keywords: FMIB 38318 Illustrating careful, methodical cutting.jpeg check categories 26 August 2015 2 Illustrating careful methodical cutting Subject Shells--Industry and trade Pearl button industry Pearl button industry Tag Shellfish 1921 Cite book Fresh-water Mussels and Mussel Industries of the United States Coker Robert E Washington DC Government Printing Office 1921 Bulletin of the United States Bureau of Fisheries vol 36 1917-1918 Plate XLIV-2 Creator Robert Ervin Coker PD-UWASH-FMIB Institution University of Washington FMIB-source accession number 38318 Images from the Freshwater and Marine Image Bank to check Robert Ervin Coker Shell buttons |