If you're running a Mac, just go to Font Book and take a scroll down your fonts list? :)
If not, I have no idea what font it is...but,you should make a note of these things in your sketchbook, incase of future accidents :)
You could also retype the name and just go through the fonts on your system until you find it. If the character panel's open you should get a preview of the font from the drop down list
I always skip through Font Book because it really annoys me that you can't use the up and down keys/preview in Illustrator.