Since May 2016 agaplatesuk from Redditch in England has been trying to sell these plates. They are supposed to be from Ascension, Jersey, Gibraltar and Alderney.
If you look at the previous photo of the fake SBAA home-made plates, you can see that these 4 have been made in the same way and from the same bits and pieces of unused plate making material. None of them are professionally made.
It is almost certain that these were made by the same person that made the SBAA plates in the same garage. On sale at the same, made from the same materials but from 5 different countries, all poorly made. Very, very suspicious.
Complete fakes almost certainly.