4Baden 9 Kreuzer – Around €1 Million
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This stamp is a moneymaker because of a color error. It has the face value of 9-Kreuzer and it was coloured pink, whilst that of 6-Kreuzer stamps were coloured green. But the error in printing took place when a batch of 9-Kreuzer stamps was coloured green, instead of pink. Just four of these stamps exist and one was sold for over €1 million in 2008. Click the next ARROW to see the next stamp!