First of the fifty céntimos after the reformation. If you notice a coin/currency trend among Central and South American countries you are correct. They often change governments and with it change their entire monetary systems. The instability does not make the coins rare mainly because the lack of proper accounting. They tend to flood the country with these new coins and notes but the exact numbers may never be known.
|BANCO CENTRAL DE RESERVA DEL PERU 1991|
Here's the stats...
Type/Country: 50 Centimos / Peru
Value: $0.20 in Fine (currency exchange is at $0.19)
Do you have a Peru coin and want to know its value? Leave a comment/question and I will do my best to find out the price and history for you.