SPAIN. 20 Reales de Vellon, 1833-M DG. NGC PROOF-63.KM-575; Cal-Type 127#518; Cayon-16105. RARE one year type. Tied for finest graded at NGC with none finer and none graded at PCGS. Sharply struck with hard flashy proof surfaces. Lovely deep cabinet tone showing a variety of hues when tilted. Clearly this example was stored for a prolonged period of time without any disturbances.