1. Railroads. Regulations and instructions to govern recording and reporting of all extensions and improvements or other changes in physical property of every common carrier as prescribed by Interstate Commerce Commission in accordance with sec. 19a of act to regulate commerce, effective Jan. 1, 1919. 2d revised issue. Reprinted without change May 1936. Bookmark Corporate/Agency Authors: Valuation Bureau and Congress Publisher: Valuation Bureau Date: [June 1936] SuDoc number: IC 1 val.5:3/3-3