Original Vintage Large Spillers Osoko Dog Food Enamel Advertising Sign. This is a genuine original enamel advertising sign. Made of vitreous enamel on thick metal. It advertises “Spillers Osoko” dog food for “All Dogs”. Large size – 30″ x 20″. The vintage sign shows typical age and wear – see photos to aid description. Spillers was a well-known British feed and milling company, with a long history in pet food production. Spillers was originally a UK flour miller founded in the 19th century, became a major pioneer in the commercial pet food industry, launching iconic brands like Winalot in 1927 and acquiring Spratt’s in 1960. A splendid original large enamel sign – perfect for a man cave or any dog lover.