This is normal for US coins.

Does it have a reeded edge ?
May be some type of dryer coin.

It's not a coin , it's a medallion, and it's damaged.

Can you post some pics?
99% of those who see this post will not open your link.

Supply and demand dictate value.
There is not always a correlation between rarity and value.
Some scarce varieties bring very little premium.
Besides PCGS and NGC don't list or attribute this variety.

Not an MS coin at all.
I see wear on the moustache tip and robe chain.

Despite what you see on eBay there is no premium for a note like yours unless part of another note on the sheet is visible.
Most collectors seek out well centered notes.

These are listed on eBay for $129-$425
One actually sold for $129
One listed as extra sail sold for $5 but it was a misattributed normal sail type.
I'm surprised both ICCS and CCCS will grade these.

Catalogue (information on this site) is wrong, look at the picture here;https://www.coinsandcanada.com/coins-pr ... diancoin-2

It's clearly OBV2

Not a SP (specimen) coin, it's PR (proof)
A scratch would destroy any numismatic value

I'm an old fool.
The odds of getting two in random change are miniscule.
They must have cracked a roll.
I should have walked back in and bought up as many as I could.

Got two of the "black" twoonies today in my change at Tim's.
Pleasant surprise.

One of three reasons;
a) supply and demand
b) error in the price guide
c) a fool and his money.....

A die crack is not an error.