Bianco (4 Soldi) - Emanuele Filiberto (1st type)

Emanuele Filiberto introduced the bianco as part of a sweeping monetary reform launched after he regained control of Piedmont from France following the Treaty of Cateau-Cambrésis in 1559. Having spent most of his life in exile administering Habsburg territories, he returned determined to rebuild Savoy's financial infrastructure from scratch — new coinage, new mint organization, new standards. The bianco at 4 soldi was a workhorse denomination aimed at normalizing everyday commerce in territories that had been running on a chaotic mix of French, Spanish, and locally debased issues for decades.

The "1st type" distinction matters here: Emanuele Filiberto revised his coinage at least once during this period, and MIR 520 represents the earlier emission before those adjustments took effect.