Examples of the oval date stamps of Western Australia which are inscribed Post & Telegraph Office (or similar words) are summarised below. Oval date stamps headed TELEGRAPH OFFICE are described elsewhere.
A full listing can be viewed elsewhere.
| Easy finder - click first letter of office: | A | B | C | D | E | F | G | H | 
| I | J | K | L | M | N | O | P | |
| Q | R | S | T | U | V | W | XYZ | 
| A | 
 Rated RRRR. Used: 9 September 1904 to March 1907. | 
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| B |  Blackboy Hill Post & Telegraph Office. 30 October 1914. RO7 - P&TO. ACE Stamp Auctions Sale 7 Lot 597. |  Boyanup Post &Telegraph Office. 7 February 1899. RO2 - P&TO. Size: 26 × 41 mm (e = 0.77). | |
| 
 Size: 26 × 41 mm (e = 0.77). Used on WC-DO-5B. | 
 Not recorded in Goulder. Applied as a backstamp on registered letter from Sydney. | ||
|  Bulong Post & Telegraph Office. 3 July 1899. RO7 - P&T in violet. | 
 Rated: RRRR. | ||
| C | 
            RO4 - P&T. ACE Stamp Auctions Sale 7 Lot 607. | 
 RO2 - P&T. 
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| 
 The earliest recorded strike (incomplete) is known for 9 January 1896 on a pair of 2d grey swans. Only 5 strikes are recorded. Prestige Philately December 2010 Lot 542. | 
 Rated RRRR. | ||
|  Cossack Post & Telegraph Office. 29 March 1902. RO6 - P&TO. Size: 30 × 49 mm (e = 0.79). Tasmanian Stamp Auctions October 2015. |  Cottesloe Post & Telegraph Office. 12 September 1944 (very early date). RO2 - P&T in violet. Size: 31 × 52 mm (e = 0.80). |  | |
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 RO7 - P&TO. See separate listing for a more detailed view of the oval Cue date stamps. | 
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| D | 
 RO2 - P&TO. Size: 26 × 40 mm (e = 0.76). A more extensive listing of the Day Dawn Ovals is given elsewhere. | 
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| E | 
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| F |  Firmiston Post & Telegraph Office. 15 December 1905. RO6-P&TO. Size: 26 × 49 mm. Rated RRRR. | ||
| G |  formerly 90 mile Torsten.jpg) Goongarrie RO6 - TO. |  Goongarrie RO6 - TO. | 
|  Greenbushes Post & Telegraph Office. 1 July 1952. RO2-P&T. Size: 30 ×50 mm (e = 0.80). | 
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| H | 
 Rated: RRR. | 
| J |  Jarrahdale Telegraph Office (RO6-TO). 23 March 1904. Size: 27 × 45 mm (e = 0.80). | 
| K |  Kalgoorlie Telegraph Office (RO2-TO). 29 June 1903. Used on WI-DO-1. Rated RRRR. | ||
| 
 Unlisted elsewhere with the one "R". | 
 Size: 28 × 43 mm (e = 0.76) | 
| L |  Leederville Post & Telegraph Office. 7 June 1912. RO4 - P&TO in blue. Size: 29 × 43 mm (e = 0.74). Used 1912 to 1917. Rated: RRR. | Other ovals used at Leederville are: 
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| M |  Mount Magnet Post & Telegraph Office. 10 February 1943. RO6 - P&T in violet. Size: 30 × 52 mm (e = 0.82). |  Mount Magnet Post & Telegraph Office. 14 March 1945. RO2 - P&T in violet. Size: 30 × 51 mm (e = 0.81). | |
|  Menzies Post & Telegraph Office. 5 September 1904. RO6 - P&T in violet. Size: 26 × 45 mm (e = 0.82). ACE Stamp Auctions November 2013 Lot 963. | 
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| N |  Newcastle Post & Telegraph Office. 26 January 1900. RO6 - P&TO on block of six 1d rose. ACE Stamp Auctions November 2013 Lot 971. |  Northam Post and Telegraph Station. 2 January 1940. RO7 - P&TO. Size: 25 × 42 mm (e = 0.80). | 
| P |  Paddington Post & Telegraph Station. Unknown date. RO2 - P&TO in violet. | 
|  Peak Hill Post & Telegraph Office. December 1898. RO2 - P&TO. 27 × 41 mm (e = 0.75). Used 1898-1899. Rated RRRR. Prestige Philately, November 2013 Lot 520. | 
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| R |  Roebourne Post & Telegraph (Office?). 17 August ??. RO2 - P&TO in violet. |  Ravensthorpe Post & Telegraph Office. 5 August 1909. RO6 - P&TO. On postcard - see Prestige Philately Feb 2012 Lot 754. | 
| S |  Southern Cross Telegraph Office. 25 May 1904. RO6-TO. |  Subiaco Post & Telegraph Office. 28 January 1954. RO6 - P&TO used in violet. Size: 30 × 55 mm (e = 0.84). | 
| T |  Tambourah Post & Telegraph. 6 September 1889. RO2 - P&TO in violet. Size: 26 mm high. |  Tambourah Post & Telegraph. Incomplete date. RO2 -P&TO in blue. Reported as being used only between 6 and 13 September 1899. Clearly this example is outside that range. | 
| 
 Used on WI-DO-3C. Rating RRRR. | 
| Y |  Yarloop Post & Telegraph Office. 22 September 1904. RO2 - P&T in blue. Filled in circles for division between words. Used 15 September to 28 December 1904. |  Yarloop Post & Telegraph Office. 7 September 1898. RO2 - P&T in blue. Thinner letters and small dots for division between words. Prestige Philately February 2009 Lot 427. | 
| 
 Used about 1903. Provenance: Mike Brachi. |