There was originally four items identified that may have fit this definition. (The original security referral.) Of course
there could be more, but there seems to be
no such publicly available items to consider. Of those four one was long ago crossed off the list. Another has been in dispute as parallel sourced. One of the two remaining is supposedly (though who knows) the Sid email with satellite data. And I forget the other.. So maybe there are some of these, Maybe. But even so the possibility of a few items which inappropriately contained classified information doesn't demonstrate the

claim that
the declassification date means that the information was born classified no matter how many time right wing media outlets assert it.