The cover is chipped at the edges, with two gashes, one at the front one at the back; the spine strip is fraying, but still attached. the green boards are not pretty.There is an ownership signature on the front paste down and pp 301-306 the blank outer edge is creased and lightly damaged; the pages are lightly tanned, else clean unmarked and solid.A very good copy in not very good boards. Admiralty Handbook of Wireless Telegraphy 1938 - Volume I - Magnetism and Electricity B.R. 229 is part of a two volume set published by His Majesty's Stationery Office.The two volumes were designed to standardise the operating techniques and procedures. It was first published in 1938.