We know that since it's inception in 1986, the American Silver Eagle bullion has been minted in the West Point mint. But it was recently uncovered by NGC that the other mints; San Francisco and Philadelphia mints have shared the production of the Silver Eagle bullion coins owing to huge demand for them. Around 79,640 were minted in the Philadelphia mint in 2015 and they are quite hot. Read more about them here. Each of the mints have a specific function that we should know before understanding how the 2017 American Eagle bullion coins are different.