In January 2017 Ebay seller klimovsergey1986 from Rostov-na-Don in Russia was selling these Replica 1946 series Soviet Union plates. He is selling them as replicas and you can order any registration you want.
The dies are almost correct and they would look good on any vintage Soviet car, bus or truck. They are made of aluminium and the genuine plates were always made of steel.
They are being put here so that if any similar plates start coming up for sale or trade for collectors, you can check if they are the very rare genuine ones or these replicas. Check with the seller or who you are trading with what they are made of before doing any deals.