4 Reales - Isabel II DIOS

The "DIOS" designation in the legend reflects the constitutional turmoil of the early Isabeline period — specifically the royalist-absolutist formula retained by the regency government of María Cristina before the liberal constitutional settlement of 1837 forced a revision of official coinage legends. These transitional pieces were struck during the First Carlist War, when the Madrid mint was operating under constant political pressure and the legitimacy of the infant queen's claim was being contested in the field by her uncle Carlos.

Cal#259 places this among the earlier Isabeline issues superseded almost immediately by successive legend changes — making the production window tight enough that surviving examples in any grade above Fine are genuinely scarce.