Graffiti on a rail in South San Francisco industrial traffic. The markings, like the rust, survive, no doubt, only because of infrequent traffic.

Shot with the Nikon D70s and the 18-70mm f/3.5-4.5 zoom at 18mm, ISO 400, f/10, shutter 1/400 sec. Exposure, contrast, saturation, levels, and highlights adjustments in Aperture.