Artillerist : tragbarere Feld-Fernsprech-Apparat [Fabrieksdocumentatie van} / Aktiengesellschaft Mix & Genest Telephon- und Telegraphen-Werke Operating practices for army administrative telephone switchboards - USA Voorschrift, Technical Manual, 24-210 voor de veldtelefoon. (The Soundpowered-telephone) Behelf zum Studium der Militärtechnik an den k. u. k. Korpsoffiziersschulen : H. 3: Telephon- und Telegraphenwesen Telephone switchbord, type BD-14 Signal training. Vol. III : Telephone sets F., marks I and I* Reference data for radio engineers Reference data for radio engineers Telephone Terminal Set TC-21 (N) (Carrier) - USA Voorschrift, Technical Manual, 11-341 Working Instructions. Part I and II. Apparatus Carrier Telephone (1en 4). MK II. WO 939 - Engeland Voorschrift Working Instructions. Telephone Set. J. WO 1554 - Engeland Voorschrift Working Instructions. Telephone Set D MK V. WO 1529 - Engeland Voorschrift
