Luftwaffe Air Signals "B" Class Radio Operators Trade Badge (Tätigkeitsabzeichen für Luftnachrichtenpersonal mit Funkprüfung "B"). The Air Signals Telephone Operators Badge was introduced on 8 November 1935 for wear by qualified personnel. The badge is executed in silver-white linnen, embroidered on a blue-grey woolen background. There is some minor moth damage. Nice example in good unissued condition!