Does anyone remember the Blacksmithing pattern?

[Leadspitter]

Hi all,

I'm trying to find out the name of a BS pattern that was a random drop (I think) quiet a long time ago. I can't remember the name of the pattern, but I know it was blue and was I think we could match up the pattern with other parts of the same to craft something? I think it was called a 'a guide to' or something like that. If I remember, I think the pattern use to drop in vanilla level 60 dungeons?

Thank you

[Baphomette]

http://www.wowhead.com/search?q=advanced+armorsmithing

[Leadspitter]

http://www.wowhead.com/search?q=advanced+armorsmithing

Thank you Baphomette,

I was looking and just couldn't think of the name of the patterns.