Ecu with eight Ls and laureate, draped and cuirassed bust - Louis XIV

The "huit L" écu was introduced in 1704 as part of Louis XIV's desperate monetary reforms during the War of the Spanish Succession, when prolonged campaigning had nearly bankrupted the French treasury. By revaluing and reissuing silver coinage, the crown extracted seigniorage profit from mandatory reminting of older écus — holders were legally compelled to surrender existing silver coin for revaluation, a forced transaction that funded the armies of Marlborough's opponents in the field.

Struck across multiple provincial mints between 1704 and 1709, attributing individual pieces to specific facilities requires close attention to the mint mark, as output quality varied considerably by location. The Rennes mint in particular produced notoriously inconsistent strikes during this period.