Technical Pamphlets Workmen Complete Set by Post Office Engineering Department (5 results)

3 vols., [of 4], 8vo., with illustrations and diagrams in the text, numerous errata slips pasted in text as appropriate; original blue wrappers, wire-stitched as issued, covers lightly dust-soiled else a very good, clean collection. The collection comprises G1: Maintenance of Secondary Cells; G3: Maintenance of Power Plant for Telegraph and Telephone Purposes; G4: Telegraph Battery Power Distribution Boards. This Group wants only G2: Power Plant for Telegraph and Telephone Purposes. With several errata slips pasted in text as appropriate. GROUP COLLECTIONS OF THIS NOTABLE AND HISTORIC SERIES ARE VERY SCARCE.

3 vols., 8vo., with illustrations and diagrams in the text; original blue wrappers, wire-stitched as issued, covers lightly dust-soiled else a remarkably well-preserved, bright, clean set. The set comprises E1: Automatic Telephony Step by Step Systems; E2: Automatic Telephony: Coder Call Indicator (C.C.I.) Working; E3: Automatic Telephony: Keysending 'B' Positions. COMPLETE GROUPS OF THIS NOTABLE AND HISTORIC SERIES ARE RARE.

7 vols., [of 8], 8vo., with illustrations and diagrams in the text; original blue wrappers, wire-stitched as issued, a remarkably well-preserved, bright, clean collection. The collection comprises B1: Elementary Principles of Telegraphy and Systems up to Morse Duplex; B2: Telegraph Concentrators; B3: Wheatstone System Morse Keyboard Perforators; B4: Quadruplex, Quadruplex Repeated Circuits and Telegraph Repeaters, Simplex and Duplex; B5: Hughes Type-Printing Telegraph; B6: Baudot Multiplex Type-Printing Systems; B7: Western Electric Duplex Multiplex. Murray Duplex Multiplex. Siemens & Halske Automatic Type-Printing Systems. The set wants only B8: Fire Alarm Systems. GROUP COLLECTIONS OF THIS NOTABLE AND HISTORIC SERIES ARE RARE.

7 vols., [of 9], 8vo., with illustrations and diagrams in the text, numerous errata slips pasted in text as appropriate; original blue wrappers, wire-stitched as issued, covers lightly dust-soiled else a very good, clean collection. The collection comprises A1: Magnetism and Electricity; A3: Technical Terms; A4: Test Boards; A5: Protective Fittings; A6: Measuring and Testing Instruments; A7: Sensitivity of Apparatus; A9: Standard Graphical Symbols for Telegraphy, Telephony abnd Radio Communication. This series wants only A2: Primary Batteries; A8: Standard List of Terms and Definitions used in Telegraphy and Telephony. With several errata slips pasted in text as appropriate. Pamphlets A8 and A9, issued solely for internal distribution, are particularly scarce. GROUP COLLECTIONS OF THIS NOTABLE AND HISTORIC SERIES ARE VERY SCARCE.

10 vols., 8vo., with illustrations and diagrams in the text; original blue wrappers, wire-stitched as issued, covers lightly dust-soiled else a remarkably well-preserved, bright, clean set. The set comprises H1: Open Line Construction Part 1; H2: Open Line Construction Part II; H3: Open Line Maintenance; H4: Underground Construction Part I. Conduits; H5: Underground Construction Part II. Cables; H6: Underground Maintenance; H7: Cable Balancing; H8:Power Circuit Guarding; H9: Electrolytic Action on Cable Sheaths; H10: Constants of Conductors used for Telegraph and Telephone Purposes. COMPLETE GROUPS OF THIS NOTABLE AND HISTORIC SERIES ARE RARE.