50 Pesos with 'DECRETO-LEY' on Obverse

The "DECRETO-LEY" overprint on this note marks the legislative mechanism used by the military-civilian transitional government to enact the 1973 monetary reforms without a sitting congress. Argentina's repeated reliance on decree-law authority during the early 1970s reflected the constitutional instability of the Peronist restoration period — Perón himself returned from exile in June 1973 after eighteen years, died in office in July 1974, and was succeeded by Isabel Martínez de Perón, under whose administration inflation accelerated sharply past 300% annually by 1975.

The overprint distinguishes this from otherwise identical printings of the same series lacking that text — a detail that matters for accurate period attribution.