Covers, Picture Postcards & Banknotes - Special Auction

Great Britain: Polymer Test Note printed by De La Rue Currency in 2002 on "Guardian" substrate produced by the australian polymer producer "Securency" (today Innovia Security). The note is intaglio printed in one layer lilac color with portrait of Sir Isaac Newton in center. The so-called "Graviton" note has a small round window at upper left and a larger transparent window at right in substrate. Back side shows the home of Newton, Woolsthorpe Manor. Rare Test Note. Condition: UNC. Catalog Price 130.00