Original vintage food packing industry trade magazine ad for FRYER-KNOWLES of Seattle, WA.  For Health and Sanitation Insist on FYSKO Floors.  For a floor that is rot, insect, and vermin proof insist on a FYSKO Floor.  Used in Packing Plants, Frozen Packers, Fish Packers, Warehouse, Creameries, Canneries, Factories, Bakeries, Dairies. Old 1946 canning and processing advertisement.