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http://www.new-euro-banknotes.eu/Europa-Series/Europa-Series-DesignSerial numbers on the Europa series of banknotes The serial numbers on this series are the two numbers printed on the back of the banknote:
a horizontal number printed in black and a vertical number printed in a different colour.
The horizontal number comprises two letters and ten digits. The first letter identifies the printing works – see the list below. The second letter has no particular meaning; it simply makes more serial numbers possible.
Printing works and letters
Nationale Bank van Belgi?/Banque Nationale de Belgique
Z
Bank of Greece Y
Giesecke & Devrient GmbH (Munich) X
Giesecke & Devrient GmbH (Leipzig) W
F?brica Nacional de Moneda y Timbre V
Banque de France U
Central Bank of Ireland T
Banca d'Italia S
Bundesdruckerei GmbH R
Joh. Enschede Security Printing BV P
Oesterreichische Banknoten und Sicherheitsdruck GmbH N
Valora M
Not assigned L
Not assigned K
De La Rue Currency (Gateshead) J
De La Rue Currency (Loughton) H
Not assigned G
Not assigned
F
Oberthur Fiduciaire E
Polska Wytw?rnia Papier?w Warto?ciowych D
Not assigned C
Not assigned B
Not assigned A