The house Sotheby's is currently auctioning three rare objects of great value, at a sale that will take place on June 8 in New York (United States), reports CNN.
This is a 165 year stamp, a gold coin and four postage stamps.
The gains made during this event could bring in more than 30 million euros.
The first object, which is a black magenta stamp from British Guiana, is described as the last such object in existence.
It could be worth between 8 and 12 million euros.
A gold coin estimated between 8 and 12 million euros
Regarding the gold coin "double eagle", which dates from 1933, it reached a value of more than 5 million euros at auction in 2002. It thus became the most expensive coin in history.
It could also reach a value of between 8 and 12 million euros.
Finally, four postage stamps worth 24 cents, could be purchased between 4 and nearly 6 million euros.
The object has a printing error, which allowed it not to be used at the beginning of the 20th century.
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