1/2 Blanc with shield - John V Nantes

John V ruled Brittany longer than any other duke of the Montfort line, and the monetary policy of his later reign reflects the chronic instability of Franco-English competition for the duchy's loyalty. The billon content of these petty pieces fluctuated with treaty obligations and the availability of silver, making metallurgical consistency across the issue nearly impossible to establish.

The Jézéquel reference for this type documents significant die variation across the emission, unsurprising for a mint operating under fiscal pressure during the final decade before John's death in 1442.