Thank you. America has never produced an FAO coin and probably that's the reason you may not be aware of it. FAO coins are very popular. However, many FAO coins were minted in the US.
Here's the brief -
In 2,500 years of numismatic, or monetary, history, FAO Coins constituted the first international issuance with a common theme: FOOD FOR ALLUN’s FAO council launched FAO money program in 1968. Since then, 150+ countries have participated in this program by issuing circulating and commemorative FAO coins in around 1200+ different varieties. These countries issued around 7 billion coins in total and amounting to approximately $203 million. The main goal of FAO was to modernize and improve agriculture, forestry and fisheries practices and ensure good nutrition for all. The program sponsored many projects on construction of dams, development of fisheries, promoting farming, etc.