This is a picture of the most valued stamp collectible. It sold for almost $3.5 million dollars!
“First on our list is a swedish stamp issued in 1855 and most ironically the world’s most expensive is actually a printing error as it should have been printed in green which was indicating its three skilling value instead of yellow which was meant for eight skilling stamps. Because of its rarity this stamp sold in 1996 for no less than 2.5 million swiss francs”