Luftwaffe Signals Personal (Truppennachrichtenpersonal) trade badge (Tätigkeitsabzeichen). The Signals Personal trade badge was introduced on 8 November 1935 for wear by signals personnel in flight and anti-aircraft units, who hadn’t qualified for one of the five Air-Signals speciality badges. The badge is executed in silver-white linnen, embroidered on a blue-grey woolen background. Nice example in good unissued condition!