From Lexicanum

The chapter symbol does not seem official and should therefore be removed. --Inquisitor S. 14:14, 18 May 2008 (CEST)

Afraid this was the best I could find of what appears to be the official symbol. Even cleaned up a bit, it isn't that great, sorry.--Mob 17:52, 19 May 2008 (CEST)

I'll try to find something better, this kind of symbol is used in a lot of chapters, so it's gonna be useful in the future too. --Madness 17:55, 19 May 2008 (CEST)

P.S.:You could help me by finding all the official chapters with that eagle head (other colors don't matter).--Madness 18:05, 19 May 2008 (CEST)

The Black Consuls, Mentor Legion, and the Raptors seem to be the main culprits at the moment.--Mob 18:25, 19 May 2008 (CEST)