Watch List notes:

Uruachic, Chihuahua, Mexico, Compania Minera, 50 centavos specimen, 18XX, certified PMG Gem UNC 66 EPQ, finest known at PMG. Frampton-M677s. Two POCs. Unlisted in the Standard Catalog and Frampton notes the type is only known as remainders or specimens. Nice, well-centered note with only one other seen at PMG, an AU 58 note. PMG #5001129-012. (Estimate: $300 - 450)