Famous Stamp Errors That Changed Philately

The Inverted Jenny, the Treskilling Yellow, the Mauritius Post Office error. These mistakes made history.

Stamp errors occur when something goes wrong in production: inverted centers, wrong colors, missing perforations, or typos. Error stamps are the holy grail of philately because they are by definition rare and unplanned.

The discovery of an error stamp can transform an ordinary person into a millionaire. Some errors, like the Inverted Jenny, happened because a printing sheet was rotated between color passes..