Signal Training. Pamphlet no. 3. Maintenance of Signal Equipment in the Field. Part IV. Teleprinters 7B (WD). 1945 - Engeland Voorschrift Signal Training. Pamphlet no. 8. Signal Office Organization and Procedure. Part I. Procedure for Morse Telegraphy, Line Telephony and Visual Signalling.1944 - Engeland Voorschrift Handbook no. 2c(2). Communications for Beach and Build-Up Oraganisation. WO 8620 - Engeland Voorschrift