Watch List notes:

Guerrero (Campo Morado), Mexico, copper 50 centavos, 1915-CM-GRo, NGC MS 61 BN. KM-657. Exceptional strike and centering for the issue, with strong die-polish lines but no damage or wear except for highest points, in fact tied with two others for second finest in NGC census behind a single MS 64. NGC #3162521-005. Pedigreed to the Stack's Coin Galleries auction of August 2009, lot #5475.

Estimate: $150-225