Sperry measuring car, type DC1, from the Illinois Central Railroad, 1 May 1945.

History:
A measuring instrument can be mounted on a railway car to detect and control track defects, and also to compare the running characteristics of different cars.

This high quality 8.5 x 11 photo is brand-new and has been originally reproduced from a transparency or negative, or positive. It has been printed on glossy photo paper, and sent from a smoke-free environment. Be sure to see my other listings as many railroad photos are available. Thank you! 

Please note: ebay watermark does not appear on actual photo.