100 Cruzeiros

Brazil's monetary system was unraveling badly by 1992. The cruzeiro had replaced the cruzado novo in 1990 as part of the Collor Plan — an economic shock program that famously froze private bank accounts overnight — but inflation continued accelerating toward the hyperinflationary collapse that would eventually demand yet another currency replacement. The cruzeiro real followed in 1993, itself lasting barely a year before the real finally stabilized things in 1994.

This 100-cruzeiro piece was effectively obsolete almost as soon as it circulated.