Watch List notes:

Costa Rica, piefort copper-nickel essai 1 centavo, 1892, "ESSAE DE MONNAIE," rare, encapsulated NGC MS 65, finest known in NGC census. KM-unl (cf Pn6). Lustrous and totally devoid of marks, the reverse with slight surface granularity (as made) but still the best on record, the finer of just two in the NGC census. NGC #2728555-007.
($400-600)