[END TRANSLATION]
Edition: State Railways of the Kingdom of Yugoslavia G.D. No. 23999/33. Print shop of the State Railways in Subotica, 1933. The State Railways of the Kingdom of Yugoslavia, effective from January 1, 1934, issue number 81, Regulations for the Telegraph and Telephone Service (administrative-manipulative part), edition, G.D. No. 23999/33, in domestic traffic. Extracted from the content: General provisions: Use of telegraph and telephone, secrecy of telegrams, types of telegraph stations, division, priority. Composition, submission, and equipment of telegrams: format and composition, submission of telegrams and phonograms, record-keeping, composition, dispatch, and reports. Morse typewriter and its use: Parts of the Morse apparatus, switch, relay, typewriter, compass (current indicator), lightning rod, and maintenance. Abbreviations in telegraph service: In road service for passenger and freight vehicles. Telephone service: Purpose, telephone equipment, phonogram setup, calling and answering, telephone schedule, the ‘noon’ signal. To view, click on the PDF document: Regulations for the Telegraph and Telephone Service