In September 2017 Ebay seller license_plates_shop from Niederaichbach in Germany was offering these poor quality reproduction Japanese temporary plates. He has 10 copies of the same plate.
These plates have the wrong number and Kanji (Japanese characters) dies, there are no pre-made mounting holes and the two Kanji (Kobe at left and Noda at bottom right) are not even from the same prefecture which gives the plate an impossible registration.
Replica plates always have something wrong with them so don’t buy them. Be very, very, careful of anybody offering plates like this in a trade or for sale and check very, very carefully if they are correct.
Remember mint plates from most countries are never genuine.