I see that these fake blades are going around. Purchased from Amazon within Australia this year. The fonts are all wrong. The Logo ASTRA, is not replicated. The Pointy A's are the same as the other characters in ASTRA. The AR in ASTRA don't touch.
The grind profile is different. Longer on the counterfeit. The grind is also course with vertical groves.
The paper wrapping is brownish and is not the same size/folding as the original.
The outerbox and small cartons which are easier to duplicate look good, but have a different shine to them.
I just checked three cartons of Astra Superior Platinum blades I have, all appear to be genuine based on the excellent information provided on this thread. Hats off to @itsthemetho for putting together the great pics of the differences between genuine and fake blades.