Watch List notes:

Mexico City, Mexico, cob 1 real, (16)21D, rare, Grade 1. S-M18; KM-27.2 for type; Cal-unl. 3.20 grams. Bold full cross, nearly full (off-center) shield with full oMD to left below fairly clear ZI of date (not mentioned on certificate) followed by very distinct six-point star ornament in legend, no corrosion but typically bright and shiny, rare denomination for this wreck. With original Fisher tag and photo-certificate #95A-1069.Recovered from: Atocha, sunk in 1622 west of Key West, Florida
($1,000-$1,500)