Machin definitives are not every one's cup of tea, but for those of us who do collect and study them some amazing stuff still comes to light. Sometimes one can be lucky and come across a special find, perhaps it is just one of the reasons why the Machin has so many followers.
log on to Norvic Philatelic Blog for details of this find and other amazing finds concerning the new slit security stamps.
It just goes to show that it pays to check everything when a new design (s) comes to the market place.
Great stuff, and once again, many thanks go to Ian for sharing this with us.