France (Nantes mint), 1/8 ecu, Louis XIII, 1603-T, encapsulated NGC MS 62, probably finest known in NGC census. Lustrous and choice, with just a few marks but no wear, exceptional grade for the period (only one at this grade with NGC), slightly off-center strike. (Note KM value for XF is $350, with no values given above that grade.)
Estimate: $200 - 300