| File and Date | Plate Number | Letters | Type Imprimatur or Placeholder | Colour | Coments | Owner or contributer |
| 2008/04/18/DT145157.JPG | PLATE188 | LEFTI RIGHTI RIGHTJ RIGHTK RIGHTL | PLACEHOLDER | RED | OVERLAPING BLOCK OF 8 | MIKE WILLIAMS |
| 2019/08/03/DT223146.JPG | PLATE188 | LEFTI RIGHTI | IMPRIMATUR | RED | BRITISH PHILATELIC MUSEUM |
