Watch List notes:

Guatemala, bust 8 reales, Charles IV, 1805 M, ex-"Coconut Wreck" Research Collection. KM-53; Cal-899. 25.90 grams. Sharp UNC details with muted luster, no corrosion, no toning, surely one of the nicest specimens from this scarce and mysterious shipwreck, discovered at great depth by researchers seeking Gus Grissom's Mercury capsule Liberty Bell 7. Pedigreed to the "Coconut wreck" Research Collection (Sedwick Auction 6, with original lot-tag 656). From: "Coconut Wreck," sunk ca. 1810 in deep water off Bermuda
($300-450)