SPAIN, 1837 M CR (Ag) 20 Reales. Isabela II (KM-579.1; Calico #581): De Vellon. Strong details and smooth surfaces; silvery/grey patina on the obverse with light toning around the legend; olive/ silver patina on the reverse. Finest graded coin at NGC.
NGC MS 63
NGC Certification : 5710175-014/63