SPAIN, 1840, M DG. Isabel II (Ag) 10 Reales (KM 585.1, Calico 519): Fully struck with exceptionally bold specimen-like details over the entire coin. Silvery lustre shows through mirrored fields. Attractive silvery/grey toning. Highest graded at PCGS.
PCGS MS 64 Prooflike
https://www.pcgs.com/cert/36045812