Softcover, 100 pages, 8.5 x 11 in., Black-and-White photographs and illustrations.
Contents:Porter Fireless Steam Locomotives, pp. 4-36,Porter Fireless Locomotives, pp. 37-44,Porter Industrial Locomotives: Bulletin No. 104,Porter Locomotives for Logging Railroads: Bulletin No. 201, pp. 60-75,Porter Locomotives for Industrial Switching: Bulletin No. 204, pp. 76-95,H. K. Porter & Co., Builders of Light Locomotives, pp. 96-99.
