Are These 50$ Gold Eagles Fake?

post larger, clear images of one of the coins(both sides)

Also, if you have any other PCGS Slabbed coins from that era
that you know are real please try stacking them with these.
I found out the hard way that the coin AND slab were faked.
The color of the plastic is also different. Not saying
it's a sure thing, but will help you hopefully get a handle on them.

Lots of money involved here !
I prefer not to buy slabbed bullion coins (proof or standard), simply because if there is any doubt, the coin cannot be examined without breaking the slab.
Even with good barcode scans.
Even then, XRF is not of much use, because the best fakes have a tungsten core gold under a pure gold cover, and can be of exactly the same weight as genuine. Ultrasonic or X-ray examination has to be used to detect a possible core.
Cannot do either of those with the coin still in the slab.
with what silerwolf has to say.
So what should be done in this case?
I suggest taking to an experienced coin dealer for a more professional opinion. If still any doubt, have examined by another experienced dealer, for confirmation in much the same way as obtaining agreement of opinion in specialist medical practice. If they both say "break the slab", then do so.

The one could have been re-holdered which would explain the different reverse sticker.

I'd rely on price paid, seller history and price paid to assess the transaction(s). I've owned many G$50 Eagles over the years and see nothing that says to me yours are fake.

The coin is 33.9 grams leaving 16 grams for the holder which is light. Can you confirm the weight again? Sounds like they should weigh about 60 grams each from quick online research.

*I cleaned up my post from last night. Pretty tired at the time. The slabs are light if they weigh 50 grams total.

Need to know the exact weight of the slab, without the coin.