(Flour) J.G. Davis Co. Granite Flour. Lovely multicolor advertising on 1900 cover showing Barrel of Flour with Keep Your Eye on the Granite Flour franked with 2¢ Bureau Issue (natural s.e. at left) tied by Kingston, N.Y. flag cancel, Extremely Fine and choice, a wonderful cover. Estimate  $100 - 150. $0 (Image)