United States. Interstate Commerce Commission. Bureau of Valuation.

• Depreciation studies on certain items of depreciable roadway property and equipment for application to group properties
• Explanatory text accompanying the engineering report giving the cost of reproduction new and cost of reproduction less depreciation of certain accounts as shown for the San Pedro, Los Angeles & Salt Lake railroad
• Instructions for field work of the building branch of the engineering section of the Division of Valuation, Interstate Commerce Commission
• Instructions for field work of the telegraph and telephone branch of the engineering section of the Division of Valuation, Interstate Commerce Commission