2The Treskilling Yellow – Over €2.1 Million
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This stamp is actually seen as one of the most expensive postage stamps in the world because it was supposed to be printed in a blue-green color, but it was now printed in yellow. It was issued in 1855 and it is believed to be the one surviving copy which exist, that is the main reason it is worth more than €2.1 million. Click the next ARROW to see the next stamp!