On a genuine brockage, there should be no signs of the reverse. When a brockage is made, the reverse die is completely covered by the coin that is stuck to it. A thing that looks like a brockage but still shows the reverse "underneath" the backwards-incuse-repeated obverse is a shed job, not a mint error.
I do not know why there's an "A" beneath mirror-George's chin. I can't tell if it's a punch, or if it's simply written there in pencil.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis