5 cent airmail stamp value

A vintage airmail stamp!

The 5-cent airmail stamp you're referring to is likely the "Inverted Jenny" stamp, which was issued by the United States Postal Service (USPS) in 1918. The stamp features a biplane flying upside down, and it's considered one of the most famous and valuable errors in philately.

The Inverted Jenny was printed in large quantities, but only a few hundred stamps were printed with the biplane flying upside down, due to a mistake in the printing process. These error stamps are highly sought after by collectors and can fetch significant prices at auction.

In mint condition, a 5-cent Inverted Jenny stamp can sell for tens of thousands of dollars. In fact, in 2018, a mint condition Inverted Jenny stamp sold for $1.5 million at auction!

If your stamp is not in mint condition, its value will be lower, but it can still be worth a significant amount. Here are some approximate values for used Inverted Jenny stamps:

Keep in mind that these are rough estimates, and the actual value of your stamp will depend on its condition, rarity, and demand from collectors.

If you're interested in selling your Inverted Jenny stamp, I recommend consulting with a reputable stamp dealer or auction house to get a more accurate appraisal.