I understand grading uncirculated coins and worn key dates, but I do not understand this. Why? I've found better looking war nickels in circulation! I hate sales gimmicks/trinkets.
I feel this was probably sent in by a big resell company. They send these bulk orders in and get them backup without numerical grades. I've seen all kinds of coins in these genuine holders.
Someone did a massive bulk submission and got a special label. Quickly hopping around NGC verify there are at least 400 each of them in the 8681346 through 8681349 cert prefixes, all with just the Genuine designation, so that's over 1500 war nickels. Originally someone's late night infomercial perhaps? Lots of similar gimmicks have gone through NGC.