I have been monitoring this user’s items for some time now and I have found the same junk being sold by this user as the other users that I have mentioned on this website.
Please be aware that stamps which have colours changing or missing, or parts of stamps missing are at the most forgeries and at the least deliberately introduced actions or damaged stamps, they are not genuine errors as such.
Examples being sold today by this seller include
these are very easy changes to the stamps, there are a number of methods to achieve this including exposure to sun light for some time, or using diluted bleach or other techniques which are more sophisticated.
The user has the following line in his adverts, All the items I list is authentic and there is no forgeries, I always stand behind the items I sell, which is a dangerous thing to say.
I challenge this user to find any authority which will verify the authenticity of these errors. The sad situation is that he is selling them for a lot of money.
There are other items that he is selling that are very suspecious but I will not list them here because if someone is trying to sell these stamps then I will not trust any item from them any more.