Testbanknoten: Great Britain: Polymer Test Note printed by De La Rue Currency in 2013 on plastic substrate "Safeguard", Straus DLR S9X2. This vertically designed note has two larger windows at lower area, one of them overprinted with OVI ink by SICPA (Switzerland). The note has serial number AA000000 and shows a portrait of a crane on front. Special about this test note is that it was additionally overprinted with Specimen seals and Specimen writing by De La Rue on front and back side. Usually they are only seen without these overprints. This makes it special as it is a Specimen of a Test Note before it was released to be shown to customers. Condition: UNC.