MEXICO. 8 Escudos, 1820-Mo JJ. Mexico City Mint. Ferdinand VII. PCGS Genuine--Cleaning, AU Details Gold Shield.Fr-52; KM-161; Cal-Type 20 #61; Onza-1271. Far nicer than the grade suggests with virtually Mint State detail over the raised designs and obverse fields that border on prooflike and show no evidence of past cleaning.