Lámparas eléctricas para minas.
[Spain]: [Wolf Safety Lamp Co.], [ca. 1928]. Paperback. 79 pp., illustrations, printed wraps. 9.5 x 6.25 in. Head of spine bumped. Sheet with specifications for a lamp (Model No. 950) laid in, with some chipping to the left margin. Catalog for alkaline battery-powered lamps used in mines. Alkaline lamps were..... More
Cat.No: 297459