Your Opinion Of This UFO Error.

A factual answer is impossible to give. No one CAN know unless they talk with the original engraver or borrow Doc Brown's car to go back and find out.

Scientific fact requires, by definition, DIRECT OBSERVATION and collection of data. This goes contrary to modern trends where a lot of theories are proclaimed fact. But observation is the very definition of factual and provable science.

Remember, hat goes up MUST come down - tell that to the probes Pioneer 10 and 11.

The overlay does make this anomaly look like a tilted 5. And someone might say, "well it would take quite a coincidence to make a gouge in the die look like this," consider how many die gouges there are in all US coinage.

At some point, and on some coin, it would seem likely an accidental gouge would make an anomaly look like a legit engraving error.
Personally, I think its within human nature to "want" things like this to be an actual mint error, and I think its cool looking! But we cannot ever know for sure.

Yes, it is a Numismatic term
It means "Unidentified Fascinating Oddity"
It is an error that no one can say for sure how it happened.

I'm Canadian, it's not a Canadian thing. It means the same thing in all of North America.

with merc. That's what I hear and use and I don't think she is to be doubted.

Okay, I stand corrected. Never heard that term associated with coins before, thanks.

http://goccf.com/t/304139

http://doubleddie.com/2397237.html

I'm confused by that one, Waynoah83.

Ohhhhh...Oh yeah I know what you mean. No worries, thanks lol.