First Edition, Squadron Codes 1937-56 by Michael J.F. Bowyer and John D.R. Rawlings

Squadron Codes 1937-56 by Michael J.F. Bowyer and John D.R. Rawlings is a meticulously researched reference book published in 1979 by Patrick Stephens. This hardcover edition spans 152 pages and provides a comprehensive listing and identification of the secret identity code letters allocated to British Commonwealth and English-based USAAF units during the period from 1937 to 1956. The book includes black-and-white photographs and detailed explanations, making it an invaluable resource for aviation historians and enthusiasts.

The work is often described as being in "Very Good" condition, with editions featuring blue boards and gilt titles on the spine.