ERROR IMPERF MNH BLOCK OF FOUR. Be sure to add me to your. Our aim is TO BE THE CHEAPEST and the BEST... However mistakes can happen, if we make a mistake, let us know, we will sort it out!! This item is in the category "Stamps\Great Britain\Elizabeth II\Machin Definitives".The seller is "dolf10" and is located in this country: GB. This item can be shipped worldwide.