Testbanknoten: complete and uncut sheet of 28 test notes DE LA RUE CURRENCY portrait Newton, without underprint, front and back show the same style, one side printed in blue, one in red color, paper with security features, intaglio printed, with visible (but not yet printed) additional security features "Digiflect" visible at each note at upper left corner in form of several blind intaglio circles (this feature was used for example on the Bahamas 10$ note). Rare printers item.