Watch List notes:

Mexico City, Mexico, cob 8 reales, 1615/4 F, very rare, NGC AU 58, finest and only example in NGC census. S-M17; KM-unl (44.3 for type); Cal-unl (Type 162). 27.52 grams. Broad and typically concave flan with choice full shield and cross, bold full denomination 8 and date with last digit doubled but confirmed by distinctive lions on reverse that began in 1615 (see Lazaro #40 for a 1615 Royal with the same lions), choice grade, no toning, minor edge-splits. Note: This is not just the only 1615/4 8R in the NGC census but is also the only non-Royal 8R in the census for the whole date-range of 1613 to 1616 (and none at PCGS for 1612-1616).
($1000-2000)