Proof Presidential Dollar Elliptical Planchet Error Coin Reverse

Collector Mendy Copley found this amazing John Adams Proof Presidential Dollar error coin. The obverse, which can be seen on the previous page, appears to be off-center by a fair amount, certainly way more than is acceptable for a Proof coin. The reverse of this Adams Dollar also seems off center a little bit, but not as off-center as the obverse. NGC examined the coin and found it to have a horizontal planchet error, which I believe is the result of being struck on an elliptical coin blank. Additionally, the coin has a very high finned rim, which is also pretty rare on a Proof coin since they're so carefully struck. You can see the highest portion of the wire rim on the left side of the next photo.