In April 2018 Ebay seller mybigtrunk from Reseda, California, USA was trying to sell this sample Saudi Arabia plate. He is selling it as a used royal family plate. This is complete rubbish and it is nothing but a rejected manufacturer’s test design.
It is a suggested design that was never adopted by Saudi Arabia and there are at least 6 plates in collections with the exact same number/letter combination.
It went straight from the factory in Germany to German collectors and a plate like this has never been used in Saudi Arabia.
Cheap rubbish being sold as something it is not by someone who either knows nothing, has been conned into believing a load of rubbish or is just trying to cheat collectors out of money.
Always check that a plate you want is even possibly genuine. Do not just believe all the rubbish written on an Ebay advert and waste your money on expensive junk like this.