Here's another piece of mystery art from ffffound.com. Feel free to enlighten me with the artist's name and I will display it here loud and clear as it deserves to be. A thing of beauty. (See note below)
UPDATE: Jen from GreetQ says,"This is the work of Scott Hansen of ISO50 (http://blog.iso50.com). If you're really in love you can buy it here: http://merchline.com/iso50. I'm quite smitten with the 1971 poster myself: http://www.merchline.com/iso50/productdisplay.2861.p.htm. He's a true talent!" Thanks Jen!