Two pre-WW2 hardback publications published by His Majesty’s Stationery Office.
BR 229 Admiralty Handbook of Wireless Telegraphy - Volume 1 Magnetism and Electricity. (Reprinted 1942), green cloth hardboard cover.
BR 230 Admiralty Handbook of Wireless Telegraphy - Volume 2 Wireless Telegraphy Theory. (First edition), green cloth hardboard cover, some tanning to internal pages. 
Two detailed publications designed to unify standards and the understanding of operating techniques and procedures, used in the training and practices of essential operators.
The books illustrated in our photographs are the books you will receive.
£39.00 for the two editions including postage to U.K. zone 1 addresses.
For overseas postage and delivery costs to U.K. addresses outside zone 1 please enquire.