Challenged
Pattern Altitude
I bought a framed image for my office and I'm wondering what plane it's of:
http://imgc.artprintimages.com/images/art-print/stephen-arens-time-machine_i-G-26-2661-YVFUD00Z.jpg
http://imgc.artprintimages.com/images/art-print/stephen-arens-time-machine_i-G-26-2661-YVFUD00Z.jpg