These photos are of fake plates made in China. Originally sold by one dealer with 5 identities – watch_collector_2418, rose743300, success_lucky, *a*a*a*a*a* and eee19700624 although he may have more that I have not seen.
They are no more than cheap souvenirs and can be seen on donkey carts, bicycles, etc on the streets of China but they are not genuine plates from any sort of vehicle from any country.
This batch is supposed to be the third of three types of Japanese racing motorcycle plates (or sometimes called just motorcycle plates). They are closer than the other two batches but the colours are wrong, the bolt holes are in the wrong place and real plates never have painted borders.