Hi gang,
Respectfully, as all can see, I was just asking if anyone else has ever seen one.
Not for the grossly incorrect (which is proven right here in the replies to this thread) unrequested education of how all collectors unequivocally function within the walls of a "camp" or having the coin badmouthed. I didn't expect either here and, frankly, it's disappointing to me. Personally I think both are detrimental to the unity of and mutual respect by collectors and the hobby as a whole. As a very seasoned professional collector that knows there's always something for someone and vise versa, as well as being an individual that can and does
choose to share in anyone's joy of their own treasures, I really can't find a public or communal upside of doing either. I can't help but ponder the probable motivation in choosing to do either, let alone both, in this situation. Had I asked others their opinion of the coin it'd be more appropriate, IMOHO. That said, as long as it fulfilled someone's interpersonal needs or agenda then I suppose I provided value for them. So to them, you're welcome.

I feel empathetic for others that find it interpersonally necessary to state "I don't like your _____" when they weren't asked their opinion. But I'm likely the minority.
The fact is there are collectors in, across and commingling between every collectable category known to mankind that collect census rare. Further there are endless broad-minded collectors that don't request to be or allow themselves to be pigeonholed into a "camp".
Back to the original topic at hand; I describe this coin in regards to the particular variety in conjunction with the particular error as "unique" because I believe it to be. I believe this because to date I've not been able to find another individual that has personally seen one. Many years ago, on another forum, a prominent error dealer claimed there are several (and put the lip to my coin). However he'd never seen one. This was simply another (of many) good faith attempts to shake the bushes and see if anyone has personally seen one.
Certainly it's possible another exists, it's possible many exist, but I don't know I'd say plausible when just considering the mathematics. But yes, certainly possible. Hence my post and question.

The mathematical odds of this occurrence are greater than winning the lottery twice...and this lottery only happened once. Many lotteries go without winners so as far as census rare it's a fun treasure.
THANK YOU for the compliments regarding the images, appreciated!
To answer Spence: This specimen is certified and graded by NGC as EF45 and has been for at least 13 years.
To answer Jasper62: Yes sir, tapered planchets weigh less. I haven't weighed this example because I acquired it already encapsulated so I have no way to know a definitive weight of the holder. That said I intend to remove it at some point and will weigh it at that time simply for educational purposes.
E.J. Scott