
Indiana, 1908...
Photographer's Caption
Boys in Packing Room. S.W. Brown Mfg. Co., Evansville, Ind. Location: Evansville, Indiana...
Source
National Child Labor Committee Lewis Hine photographer

Pennsylvania Railroad test weight car built in 1891, at the PRR shops in Altoona Pa.
The nature of railroading often requires that cars are weighed for contents, because billing was often measured by tonnage, and as such, scales must be regularly calibrated. These cars were built to test the scales for accuracy. They were metal to avoid taking on humidity weight, and lacked any extras that may affected the reading.
When this test weight car was retired in 1989, it was the oldest rail car in continuous service on a Class 1 Railroad in America.