Measuring 208x295mm, near mint condition with light scuffing and moderately rusted staples. The manual is dated to February 1941 (2nd edition) and intended for the Air Signals School in Halle an der Saale (Saxony-Anhalt). It contains several diagrams of radios and circuitries of ground radio devices. The original owner used to be a man called Wm. Jungmann.