Keywords: Salmon heads and tails.jpg en Fish heads and tails will be boiled to extract oil which is used in packing salmon and has a high vitamin content Image ID fish5703 NOAA's Historic Fisheries Collection Photo Date 1955 circa 2012-03-23 http //www photolib noaa gov/htmls/fish5703 htm NOAA Photo Library author PD-USGov Uploaded with UploadWizard Salmon canneries |