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.
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 Hong Kong racing motorcycle plates (or sometimes called just motorcycle plates). The two yellow ones with just a number are fairly close to real (normal) HK mc plates but the others are just figments of someone’s imagination.
These are just some of the many different serial numbers.