100 Pesos

This note was issued by the Buenos Aires provincial treasury during the acute phase of Argentina's 2001–2002 financial collapse, when the federal government's corralito freeze on bank withdrawals forced provinces to issue their own quasi-currencies to pay salaries and keep local economies moving. Buenos Aires was the largest province by population and economic weight, so its emergency paper circulated at significant volume. These provincial instruments — generically called "patacones" in the Buenos Aires case — were legally accepted for provincial taxes and some utility payments, giving them a functional legitimacy that many other provincial issues lacked.

The federal government ultimately redeemed the patacones at par in 2003, which removed most from circulation fairly quickly. Unissued remainder stock survives in better condition than circulated examples, which frequently show heavy handling from daily use as genuine transactional currency.