Author: POST OFFICE ENGINEERING DEPARTMENT
Title: Technical Pamphlets for Workmen. D 15. Telephone Testing Equipment. NEAR FINE COPY IN ORIGINAL WRAPPERS
Description: HMSO,, 1936. 8vo., with illustrations and diagrams in the text; original blue wrappers, wire-stitched as issued, a near fine copy. VERY SCARCE IN THIS CONDITION.

Keywords: science, technology, post office, telephones, telephony, telecommunications


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