Watch List notes:

Guerrero, Mexico, eagle (facing right) countermark on a Mexico City, Mexico, bust 1 real, NGC Poor details / damaged, c/s VF Standard. KM-277. Full and well-defined countermark (possibly a unique variety, as all the others we traced showed the eagle facing left) with contrasting sediment around details, the host coin typically nearly slick and with minor dents and what appear to be old test-scratches (now toned), very interesting issue attributed to Vicente Guerrero in KM. NGC #4725131-015.
($150-225)