The Detection of Defects in Magnetic Materials by Magnetic Methods - A. M. ArmourManchester: Metropolitan-Vickers Electrical Co., 1940, Paperback.
Condition: Good. Wrappers a little grubby. Text complete, clean and tight but a little age-tanned.
First in this, paperback, edition. Illustrated by way of: Black & White Photographs; Diagrams; Special publication no. 7904/5