Keywords: farms corn fertilizer industry fertilizerindustry fertilizers farmers agricultural laborers agriculturallaborers agricultural industries agriculturalindustries agricultural productivity agriculturalproductivity agriculture farming postcards patents trademarks victorian tradecards victoriantradecards miami university libraries miamiuniversitylibraries muohio digital collections muohiodigitalcollections outdoor Persistent URL: digital.lib.muohio.edu/u?/tradecards,3032 Subject (TGM): Farms; Corn; Fertilizer industry; Fertilizers; Farmers; Agricultural laborers; Agricultural industries; Agricultural productivity; Agriculture; Farming; Postcards; Patents; Trademarks; Persistent URL: digital.lib.muohio.edu/u?/tradecards,3032 Subject (TGM): Farms; Corn; Fertilizer industry; Fertilizers; Farmers; Agricultural laborers; Agricultural industries; Agricultural productivity; Agriculture; Farming; Postcards; Patents; Trademarks; |