money currency seal, temper-proof counterfeits authenticity protection against forgery of euro

money currency seal tamperproof protection counterfeits authenticity forgery watermark cash banknote paper finance european europe note euro financial detail guilloche spirograph closeup hologram reflection fluorescence fraud banknotes foil bill union fake fine lines tilt monetary savings design elements technology reflective security mark economy profit engravings magnification texture holograms element futuristic holographic