Erii royal mail

You're referring to the Royal Mail's "Error of Royal Mail" (ERRI)!

ERRI is a fascinating phenomenon where Royal Mail, the UK's postal service, occasionally produces errors on their stamps, coins, or other philatelic items. These errors can be quite rare and valuable, making them highly sought after by collectors.

Some common types of ERRI include:

  1. Misprinted stamps: Stamps with incorrect colors, misaligned perforations, or other printing errors.
  2. Inverted stamps: Stamps with the design or value printed upside down.
  3. Missing or extra perforations: Stamps with perforations missing or added incorrectly.
  4. Misprinted coins: Coins with incorrect designs, misaligned dies, or other minting errors.
  5. Error in serial numbers: Stamps or coins with incorrect serial numbers or missing serial numbers.

ERRI can occur due to various reasons, such as:

  1. Human error: Mistakes made by postal workers or minting staff.
  2. Machine malfunction: Equipment failure or misalignment during the printing or minting process.
  3. Paper or material defects: Defects in the paper or material used for printing or minting.

ERRI can be valuable, with some errors selling for thousands or even millions of pounds. However, it's essential to note that not all ERRI are valuable, and some may be worth only a few pounds.

If you suspect you have an ERRI, it's crucial to have it authenticated by a reputable expert or organization, such as the Royal Mail's own philatelic experts or a professional grading service.