Half-imitation red leather on green cloth boards. No. 143 of International Library of Technology. Electricity and Magnetism, Principles of Telephony, Subscribers' Station Equipment, Central Office Equipment, Outside Plant, Maintenance and Organization are dealt with in separate sections of 30-70 pp. each. Only a 2"x 4" water stain on front cover keeps it from being graded Very Good. Profusely illustrated by the company's Illustration Department.

Technical. Reference. Telephone NOISBN