Error Experts. Is this error Walker a 'one-and-only'?

[braddick]

I purchased this Walker off a bid board about a year ago as I noticed the mint mark is upside down.

I sort of forgot about it and then sent it into PCI with some misc. other stuff- right before PCI went out of business.

 

It would cross, I think, into anyone's holder as it has no issues outside of very light wear.

I've tried doing some research in inverted mm's for this series and could not locate anything useful.

 

Is this Walker the only known coin within the series for an inverted mint mark, and if so, would NGC label it as the discovery coin if I sent it to them?

 

 

Unfortunately I couldn't get the reverse MM to show up well in a photo as the luster messed up the camera setting for macro...

[DC Dawg]

The PCI Website is still active. Does anyone know if they are still in business?

 

Scott

[braddick]

The PCI Website is still active. Does anyone know if they are still in business?

 

Scott

 

There is some current information burried toward the end of this thread.