Hello everyone, These are 4 Non US Coins Errors I submitted to NGC a few years ago. For the newer members that haven't seen them.
I think not, just that the holder covers four of the twelve bumps on the coin. https://en.numista.com/catalogue/pieces977.html
I did the same thing, had to look thrice. The blank is mount in the slab differently. All 12 bumps are visible.