There are counterfeit coins available through Walmart, but they are sold by outside venders through their site not by Walmart itself.
Your first link say's it is out of stock. I will say though, if you can find a copy of this book - it is an excellent read. There is a ton of information on counterfeits, counterfeit technology, and a bit of history on counterfeits. It was published before the current Chinese wave so it doesn't have much to say on that, but the basic info on counterfeiting is absolutely useful.
https://www.barnesandnoble.com/w/le...t-and-collectibles-armen-r-vartian/1100485874 https://www.ftc.gov/policy/public-comments/2014/09/19/comment-00011
LOL, I usually don't click on links but when I saw it was Walmart, I figured they were selling counterfeit coins, so clicked on it just to see. I wouldn't put it past them to sell Chinese fakes. LOL
There are counterfeit coins available through Walmart, but they are sold by outside venders through their site not by Walmart itself.