ancient spanish copper coin of the king carlos iv. 1799. coined in segovia. 4 maravedis. obverse

white background vintage value valuable treasure spanish spain shield royal real pay numismatist numismatique numismatics numismatic money minted mintage mint macro king isolated history historical historic finance europe empire discovery collector collection coinage coin closeup circulation cash business art archeology antiquity antique ancient copper segovia maravedis carolus iiii carlos iv