Official Railway Equipment Register (ORER) & National Ownership Information

The ORER is a register of all of the rolling stock available for interchange across all railroads of North America. Due to the sheer size of the document, its publication date usually lags a few months after the date of the source data for each railroad.

1950, July, Official Railway Equipment Register. (Pennsylvania Railroad pages only; based on April 30, 1950 PRR data.) This is a very large file due to the manner in which it was donated.

1954, January, Official Railway Equipment Register. (Pennsylvania Railroad pages only.) Courtesy of Jerry Britton.

1955, January, Official Railway Equipment Register. (Pennsylvania Railroad pages only; based on October 31, 1954 PRR data.) This is a very large file due to the manner in which it was donated.