SPAIN, Reino de España. Isabel II. 1833-1868. AR 20 Reales (36mm, 27.11 g, 12h). De Vellon coinage. Madrid mint. José Luis de Castroviejo and Francisco Rodríguez, assayers. Dated 1837 M CR. KM 573.1. In NGC encapsulation graded MS 62. Choice lightly toned lustrous uncirculated. Highest graded for the date one graded 63 for this rare type.
Purchased from Chuck Haig (a retired Air Force Sergeant who was a real character and loved choice coins. An avid golfer with three holes-in-one to his record, Haig often played with Norman Applebaum, another famous Los Angeles based numismatist, and my now-deceased ex-partner).