To SteveH:
I believe US Mint now distributes silver eagles in 20 coin plastic sleeves. This is how I’ve been spot purchasing these sleeves from internet sellers like AMPEX, govmint, etc. I try to pay about 3-3.5% over spot price including shipping for quantities of 20, one sleeve. The US Mint is always sold out, so I go through distributors. Be picky on price, there are many sellers and watch spot market price. Also, pre-silver eagles, US Dollars are NOT one oz silver. They are ~83% of an oz and 10% copper. That’s why the sometime green patina on older silver coins. From 1986, Silver Eagle Bullion Coins are 99.9 Silver and 1 oz.