Also known as Upside Down Jenny, The Inverted Jenny is a United States postage stamp with a face value of 24 cents. It was first issued on 10 May 1918. It is a printing error that makes this one of the rarest postage stamps in the world. It features the image of the Curtiss JN-4 airplane upside-down. It is believed that only 100 stamps with the error exist now. Even though at least three more sheets had been printed with the error, they all were found and destroyed. A single Inverted Jenny stamp was sold for $977,500 at an auction in 2007.
World Cancer Day is celebrated on February 4th World Cancer Day is coordinated by the… Read More
India Independence Day is observed every year on 15 August India celebrates Independence Day every… Read More
World Elephant Day observed globally on 12 August World Elephant Day is an international… Read More
Leyla Mammadbeyova - The East's First Female Flyer Leyla Alasgar gizi Mammadbeyova, known as… Read More
Most Valuable and Rare German Stamps German stamps are among the world’s most beautiful country… Read More
Yekaterina Ivanovna Zelenko - The only woman ever known to have performed an aerial ramming… Read More