Armando, here's another excellent reference site for Lincoln varieties. http://www.coppercoins.com/advsearch.php
Even though NGC does not recognize this variety yet I still have it within my custom NGC registry set. I have tried too put together some of the top graded Lincoln doubled die examples available. 1 PCGS example and the rest are NGC graded examples. Check them out. If you like them share them with your friends. http://coins.www.collectors-society.com/WCM/CoinCustomSetView.aspx?s=15326