Eric Partridge 
Dictionary of Abbreviations [PDF ebook] 
With Especial Attention to War-Time Abbreviations

First published in 1942, this dictionary was designed to help civilians and members of H.M. forces to make their way amid the jungle of wartime abbreviations. The preface notes that newspaper readers, sailors, soldiers and airmen had to thrust themselves, like explorers, into these abbreviations in search of truth, or the execution of their martial duty and hence, a dictionary was necessary. This book will be of interest to scholars of history and language, as well as the more general, interested reader.