Mars Light.

A Mars Light is an interesting contraption that oscillates the dual sealed-beam headlight in a figure-eight pattern, meant to attract attention and inform people that it might be a good idea to get out of the way. Notice the package of Scott paper towels in the cab window.
An impromptu birthday gift for

Camera: Canon AE-1
Lens: Canon type FD (fixed 50mm)
Film: Kodak Ektachrome Elite (ASA 200)
Exposure: 1/250@f8
Date: 20 May 2005
Location: Franklin Park station, IL.
Model: Canadian National E-9 (road number not recorded)
Slide #WGE-31
Cropped and framed with Adobe PhotoShop and