100 Lira

Turkey's 100 Lira denomination was already losing ground to inflation long before this series ended in 1994. The lira had been in freefall since the 1970s, and by the time these pieces left circulation, the 100 Lira represented so little purchasing power that the government was actively planning the introduction of 50,000 and 100,000 Lira coins to keep pace. Brass was chosen over the earlier cupro-nickel partly as a cost-reduction measure — a telling sign of how the denomination's practical value had collapsed.

The series was eventually rendered obsolete not by demonetization but simply by irrelevance.