The 1975 proof sets ( #1, http://bit.ly/1oJnqK8 ) are quite common - over 36,000 sold. The 1976 sets, shown here, sold less than 10,000 - a relatively small number, which declined even further in succeeding years. This was due to declining popularity of then-President Marcos, and changes of fortune for the Franklin Mint in Pennsylvania, where the sets were produced.


The P50 coin shows the emblems of four international economic organizations including the International Monetary Fund.


The P25 showed a young Filipino rice farmer.


The other coins feature Marcos, Jose Rizal, Filipino painter Juan Luna, past national leader Francisco Baltasar, " Mother of the Revolution " Melchora Aquino, and warrior chieftain Lapu-Lapu.