20 pound note polymer extremely rare lots of error/misprints taking offers

Possibly one of or a very few ever printed. This note has what looks like 5-7 different errors witch are as follow.

The 2020 date in the bottom right window is overlapping the frame. The tower has gold missing on the right side and at the base has gold overlap onto the white. The picture behind the tower has blue ink missing and has some printed above on the clear section. There is a purple ink error that looks like part of the holofoil crown printed at the bottom in reverse and flipped witch should not be there at all. The holofoil crown has marks and wear possibly from the purple ink error process.

On the back of the note there is what looks like gold or copper pressed into the polymer and has some patterns in the ink. Thanks for looking open to serious offers.

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