Lot of 4 German VAMPIRE Notes. 10000 Mark Banknote

Circulated Lot of 4 German VAMPIRE Notes. 10000 Mark Banknote, 1922 Post WW1 Germany Currency.
The front design of the three notes featured work by the German painter Albrecht Durer, called “Portrait of a Young Man.” Durer is one of Germany's most famous Renaissance artists, and this piece was done during that time. When this note was printed, the engraver, whose identity is unknown, made an unusual alteration. If you turn the note to the left at a 90-degree angle, you can see what looks like a face and an open mouth on the man’s neck. This would become known as the “Vampire Note.”