Which suggests to me they are quoting the announcement.
Given the nature of the person selling them, it would be safer to assume they want you to believe the percent sign is misplaced so that you buy it, but then when you realize it’s less than 1% silver you can’t get your money back.
When you see “1 oz of .999 fine silver” that means it’s almost pure silver. 1.0 would be 100% pure. This is 99.9% pure.
https://topvegasbuyer.com/blog/the-truth-about-999-u-s-silver-coins/
You can also get .9999 silver.
Except, the article has it in quotes:
“1oz .999% silver medallions”
Which suggests to me they are quoting the announcement.
Given the nature of the person selling them, it would be safer to assume they want you to believe the percent sign is misplaced so that you buy it, but then when you realize it’s less than 1% silver you can’t get your money back.