Photograph showing a "Portland General Electric" truck with one man driving and another standing on top. A sprayer is attached to the front of the truck, with nozzles spraying a liquid towards the ground. In the background is an open field. Written on the negative is "50-653." (Image note: see related image PGE 50-659."

Photograph showing a "Portland General Electric" truck with one man driving and another standing on top. A sprayer is attached to the front of the truck, with nozzles spraying a liquid towards the ground. In the background is an open field. (Image note: see related image PGE 50-653."