This is a trial piece for a 100 Francs denomination that was never issued for circulation under Albert I — Monaco's monetary ambitions at this scale did not materialize, leaving pattern and essai strikes as the only physical record of the proposal. The Gadoury reference places it firmly within the documented Monaco essai series, but surviving examples are exceptionally rare by any measure.
This is a trial piece for a 100 Francs denomination that was never issued for circulation under Albert I — Monaco's monetary ambitions at this scale did not materialize, leaving pattern and essai strikes as the only physical record of the proposal. The Gadoury reference places it firmly within the documented Monaco essai series, but surviving examples are exceptionally rare by any measure.