undated 2 EURO with two reverse dies ( double tail )

Hi there. I heard of a few graded double tail or Double head coins but never a bi metal coin and thinking of a double tail 2E ...

here is some information about the latest discovery of double tail euro set.

http://books.monetonos.ru/numi3maticheskai%20literatura/monety%20inostrannye/Mint%20Error%20News%20Magazine/Mint%20Error%20News%20Magazine%20issue%202.pdf

that's about where it ended , the whole set of EURO except the 1E and 2E.

Some information about the origin of the coin.

http://www.coincommunity.com/forum/topic.asp?TOPIC_ID=159286

first picture , of the raw material taken in front of a mirror. The other pictures taken after submitting it to NGC.