DuraNote Predecessor Polymer Banknote Advertising Note Specimens. ND, ca.1980-90's, Uncut Pair of polymer sample notes with different security elements added. Both are 100 Denomination notes with oil platform on front and back with oil wagon being pulled by horses, Includes security elements of wavy lines with light green "100" security device on left. Choice to Gem Uncirculated condition. Scarce and attractive. DuraNote Predecessor Polymer Banknote Advertising Note Specimens. ND, ca.1980-90's, Uncut Pair of polymer sample notes with different security elements added. Both are 100 Denomination notes with oil platform on front and back with oil wagon being pulled by horses, Includes security elements of wavy lines with light green "100" security device on left. Choice to Gem Uncirculated condition. Scarce and attractive.