The Alox with Marble Kings is tricky. Alox did bag Marble Kings after they stopped making their own marbles. Nancy Frier (granddaughter of the founder) showed pix full of what I am sure were Marble King cats from the factory.
BUT ... it is true that Alox bags are very likely to be fantasy or backfilled.
The bottom packages would make my heart flutter a little if they say "Japan" on them anywhere. And I would look to see if those were cross-through cats.
The glass swan bag looked like Jabo to me also, so whether it's a legit premium or a weird fantasy bag, it'd be newish.
If you could get them for an average of $2 or $3 a bag, I'd go for it. Might go a little higher depending on of those are Japanese bags, especially with cross-throughs in them.