In June 2017 Ebay seller jbeerd from Moscow in Russia was trying to sell this replica District of Columbia presidential limousine plate shown at the top. He has many copies of this plate. This is supposed to be the plate that has been used on the presidential limousine from 2013 until 2016 at least.
At first sight, this plate looks quite good but when you look carefully, the printing is in slightly the wrong place and the state department water marks are missing on the reflective sheet.
The big problem is going to come later when some of these plates get into the market. From a photo during a sale or trade it could be difficult to tell if the plate is genuine or not.
This just makes everything difficult for everyone. Reproductions are very bad for the hobby and if you care about the future of the hobby, it is better you do not buy reproductions, especially poor quality ones like this seller makes.