fine lines tamper-proof microprint on ten euro banknote protection against fraud, counterfeits currecy seal

money currency seal tamperproof hologram counterfeits authenticity watermark forgery cash banknote paper finance european europe note euro financial detail guilloche spirograph closeup reflection fluorescence fraud banknotes foil bill union fake fine lines bonds original banking macro 100 texture mark part wealth exchange economy design elements holograms value monetary microprint futuristic