Watch List notes:

Paraguay (War of the Triple Alliance), 1 real, countermark "1" in rounded hexagonal fields of horizontal lines (1865-70) on an irregular 1/4 cut of a Potosi, Bolivia, 4 soles, PCGS VF25, c/m XF detail. Pratt-MR2. Bold full countermark and fairly clean cuts, nicely toned, scarce and important emergency issue from the 1864-70 war that pitted Paraguay against the Triple Alliance of Argentina, Brazil and Uruguay. PCGS #38907444.
($300-$450)