Panama, brass 2-1/2 centesimos, no date (ca. 1920), encapsulated NGC XF 45, finest known in NGC census, ex-Richard Stuart (stated inside slab). KM-X11. Dark rainbow toning over dull brass color, undervalued in KM, this specimen in fact the finest of just two in the NGC census. NGC #4427887-011. Pedigreed to the Richard Stuart collection. (Estimate: $80 - 120)