Voorschrift op den lijndienst (Vestingtelegraphie) (V.L.Vt.) - Koninklijke Landmacht Voorschrift no. 430 manual Electrical instruments and telephones of the U.S. signal corps : revised 1910 Telephon- und Signalvorschrift für die k.u.k. Infanterie und die Jägertruppe Handbuch für den Telephon- und Signaldienst / J. Czermak Technical regulations : the buzzerphone, type EE-1-A Training manual : training of signal communication personnel Drill regulations for signal troops Signal book United States army 1912 training manual / united states army Basic signal communication : students manual for all arms training manual / united states army Basic signal communication : instructors guide and all arms training manual / united states army Telephone switchboard operator : students manual for all arms Signal communication for all arms
