This looks like it came from ITC magazine - years ago - and was based on their Avant Garde font.
BTW - more like this (and this one) can be found on Smashing magazine's site: http://www.smashingmagazine.com/2008/10/26/retro-and-vintage-typography-showcase/
But I suggest you look here: http://talent.adweek.com/gallery/Love-For-Retro-Typography/7471529
Seems they show step by step....
Edited 2 times. Last edit on May 23, 2013 at 16:13 by Heron2001
All times are CET. The time is now 15:35