https://www.coinworld.com/news/precious-metals/2018/10/silver-american-eagle-bullion-sales-nearly-double.all.html
https://www.kitco.com/news/2018-10-01/U-S-Mint-Reports-Most-Gold-And-Silver-Coins-Sold-Since-January.html
http://www.coinnews.net/2018/09/28/gold-and-silver-split-in-september-us-mint-bullion-sales-mixed/
https://newstage.com.ng/2018/09/28/u-s-mint-american-eagle-gold-coin-sales-fall-4-7-pct-in-september/
https://www.firstfidelityreserve.com/2018-5-american-gold-eagle
https://www.coinworld.com/news/us-coins/2018/07/uncirculated-gold-american-eagle-making-debut.all.html