FRANCE: Louis XIV, 1643-1715, AR ½ ecu, DM (1704-5), KM-356, Gadoury-194a, date and mintmark missing as periphery didn 't strike up on overstrike, VF. This one is a real puzzler. What we think happened is that a Gadoury-184 host coin got overstruck by a Gadoury-194a (obverse on reverse and vice versa), then got flipped over and struck again with the same overstrike dies!
Estimate: 65-85 USD