Telegraph Office date stamps made from rubber with office names beginning with K to O.
      All of the date stamps shown were used in violet unless otherwise specified. None are listed in Hopson & Tobin unless indicated in the entry.   
| K |  Telegraphs. 19 December 1977. RO2 - T. Used on AT-TO-15A. |  KempseyTelegraphs. 13 April 1882. RC - T. Diameter: 31 mm. Used on AT-DO-14B. | 
| L | 
 Diameter: 32 mm. Use of TELEGRAPH is unusual.  |  Lithgow Telegraphs Section. 28 March 1977. RC1 - TS. Diameter: 34 mm. | 
| M |  Manly - TELEGRAPHS. RC1: - Diameter 31 mm. 27 April 1984. Sydney suburban. |  Mortdale - TELEGRAPHS. RC1: - 32 mm. 23 May 1973. Sydney suburban. | 
| N |  Narrandera TELEGRAPH OFFICE. 5 November 1935. RC3 - TO rubber datestamp. Rated RRR. |  Newtown - TELEGRAPHS. 31 October 1945. RRH -  T. Sydney suburban. |  Newcastle West 3 February 1956. RC- T. | 
| O | 
Transfer to TELEGRAPH {OFFICE} rubber date stamps with Offices beginning with the letters:
| A to E | F to J | P to T | U to Z |