Double Tournois - Francis I double reverse legend

The "double reverse legend" variety listed under Gadoury R1#195A is a known die anomaly of the Francis I double tournois series — the obverse legend was mistakenly engraved on the reverse die, producing a coin with legend text appearing on both faces where only one was intended. Such errors at the Paris and provincial mints were rarely caught before the dies entered production, and correction meant scrapping the die entirely. The R1 rarity rating confirms surviving examples are genuinely scarce, not merely underappreciated.