20 Francs pré-série of Morlon

Pré-série pieces like this one were struck by the Monnaie de Paris as internal production trials — not pattern coins in the experimental sense, but pre-series runs used to verify die alignment, metal flow, and press calibration before authorizing full circulation strikes. The Morlon 20 Francs type had already seen years of production in aluminum bronze, and by 1950 the Fourth Republic was actively rationalizing the coinage amid postwar monetary instability. This specific pré-série reference suggests a batch struck for administrative approval rather than public release.