This stamp was cancelled on arrival with a one line handstamp "VENDÔME" as the postman thought that it
was uncancelled. The cancel indeed is very fine and with the help of the computer I could identify GK Type PM5C (service maritime).
It was common in France that uncancelled stamps were handstamped with the name of the city. Information thanks to Alain Millet.

22 February 1911
22 February 1911 Sydney cancel on a cover with a 1908 2d stamp to Ireland. Correct British colonial letter rate in 1911.

24 August 1911
22 February 1911 Sydney cancel on a cover with a 1908 1d & 2d stamp to England. Day of MAKAMBO arriving. Heavy letter? Image thanks to Gärtner Auktionen

30 October 1911
30 October 1911 Sydney cancel on an OHMS cover with two 1911 1d stamps to Fiji - address erased.
Image thanks to Sandafayre Stamp Aauctions

27 March 1917
(new 2/2019)
27 March 1917 Sydney cancel on a cover with a 1911 10c & 2d stamp to Ireland. Day of MAKAMBO arriving.
Correct British colonial letter rate. Image thanks to Chris Rainey Postal History

20 December 1920
Unusual franking 2 x 10c 1920 overprint + English 1911 ½d definitive + Australian George V 2d to Sydney.
Cnacelled with Sydney machine cancel DE201920. Endorsed in manuscript on the reverse: "You will note theenvelope has for post
a French New Hebrides stamp a British New Hebrides stamps and an Australian stamp. Your loving Uncle George."
PACIFIQUE arrived on 19 Dec. This being a Sunday the cover was processed on Monday 20 Dec. ("JGI" coll.)

7 October 1926
A full set of the 1925 French definitives on a registered "Belmonte" cover to Sydney cancelled Sydney. One day after BP MAKAMBO called. (collection Michel Blanc

31 May 1926
(new 3/2020)
Cover to England, the 20c stammp cancelled with Sydney Slogan postmark. (Klinger coll.)

7 February 1927
Cover posted in Sydney as loose ship letter, the 1925 French 20c stamp cancelled Sydney. Oval double ring
"LOOSE SHIP LETTER" handstamp. 20c is the correct rate for colonial destination as the new 50c rate was introduced on 1st April 1927.
7 February was one day after Messageries Maritime's DUPLEIX arrived from VILA.
Image thanks to Chris Rainey
Postcard "rue du commerce à Port-Vila" from an outer island in NH to
Nouméa NC. The stamps tied by SYDNEY-9 18SE27 cachet and aside
the frank LOOSE SHIP LETTER, which strike is scarce on postcard.
50c is the rate for a colonial letter. Here the colonial postcard rate for
a short message would be 25c. SS Makambo arrived at Sydney on 18 September. ("SeSi" coll.)
Postcard "rue du commerce à Port-Vila" from an outer island in NH to
Nouméa NC. The stamps tied by SYDNEY-9 18SE27 cachet and aside
the frank LOOSE SHIP LETTER, which strike is scarce on postcard.
50c is the rate for a colonial letter. Here the colonial postcard rate for
a short message would be 25c. SS Makambo arrived at Sydney on 18 September. ("SeSi" coll.)
Cover to the U.S.A. The three 50c stamps cancelled in Sydney. Correct non-colonial letter rate.
Image thanks to Lugdunum Philatélie
Cover to the Asutralia. The three 20c stamps cancelled in Sydney. 10c overpaid.
Image thanks to Gärtner Auktionen
Letter from an outer island and carried by the Messageries Maritimes
steamer SS Lapérouse , with the correct rate 1 F 50 c for an ordinary
letter up to 20g to USA.
Against all expectations the Sydney GPO registered the cover,
fixing the registration R6 label SYDNEY B and tied the stamps by
the cachet REGISTERED SYDNEY 23MR29.
So the letter was underpaid 1F 50c. (non colonial registration fee ).
Backstamped SYDNEY 23MR29 , NEW YORK 5-1 1929 in transit
and ELNORA MAY2 1929 in arrival.
Uncommon postal history item ! ("SeSi" coll.)
reverse
14 November 1929 50c New Hebrides on a letter from Tahiti to Canada. Seen on an internet auction.
18 September 1927
(new 5/2021)
23 January 1928
17 December 1928
23 March 1929
(new 01/2021)
14 November 1929

14 November 1929
14 November 1929 50c New Hebrides on a postcard from Papeete, Tahiti to France. Overpaid 10c as the colonial long message
postcard rate was 40c. Image thanks to Lugdunum Philatélie

9 March 1931
(new 2/2019)

18 November 1932
Burns Phil letter to Suva, Fiji cancelled in Sydney. (ex Millet coll.)

18 November 1932

11 June 1934
Ship mail to NSW. The 5d tied by slogan machine cancel SYDNEY 3 NSW POSTED PILLAR BOX
11 JNE 1934 ADDRESS MAIL TO / PRIVATE BOX NUMERAL / IT EXPEDITES DELIVERY. ("SeSi" coll.)

5 March 1935
(new 2/2019)

1 July 1935
Postcard to France postet en route in Papeete on 1. July 1935. Correctly franked French long message colonial postcard rate 40 c.
It must have been the Messageries Maritimes steamer COMMISSAIRE RAMEL which left Noumea on June 19, Port Vila on June 22 (the date
written on the card) and was due to leave Papeete on 3 July and due in Marseilles on August 14. Cancelles NICE on 7 August as thze mail was forwardwed in Italy by train.
("SeSi" coll.)

1 July 1935

27 July 1935
Letter to New Zealand cancelled Sydney. (ex. Millet coll.)

2 October 1935

11 February 1936
Postcard to France sent from Tahiti: cancelled 11-02-1936 Uturoa,
Ile Raiatea and Papeete 12-02-1936.
(image thanks to Lugdunum Philatelie)

19 November 1936
(new 3/2020)
Cover to Victoria, Australia. the 50c stammp cancelled with Sydney Paquebot postmark. (Klinger coll.)

15 December 1936
Cover to England, the French New Hebrides 50c stamp is cancelled in Uturoa,
Ile Raiatea, Tahiti on 15 Dec. 1936. Backstamped on 16 Dec. 1936 in Papeete, Ile Tahiti. (Klinger coll.)

3 August 1937

9 September 1937
Ship mail to Ewell England. The stamps tied by machine cancel SYDNEY 9 SEP 1937 PAQUEBOT
and SYDNEY 4 9 SE 37 handstamp. ("SeSi" coll.)

22 February 1938
Ship mail to D
SAn Francisco cancelled Sydney (S.S. MORINDA).
Image thanks to Steve Drewett>

24 August 1938

10 November 1938
The PIERRE LOTI arrived in Sydney on 10 Novemebr 1938. The cover is heavily overpaid as
the colonial letterrate was 10cg.
Backstamped St. Sever 12 December 1938
Image thanks to Prins Philatelie France.

10 November 1938
(new 4/2020)
Sydney paquebot cancel on 30c and 5cg on a cover to South Australia. Old cents 1:6 so 10cg - correct.
(Fred Petit coll.)

27 January 1939
Registered mail from Wallis on 22 January 1939 to Kuopio, Finland. Routed via New Hebrides and backstamped Vila 1 February 1939
with Goyns Klinger type PM7B and Kuopio 21. March 1939.
(Klinger coll.)
Shipmail from Nauru to Burns Philp in Sydney. The New Hebrides 20cg stamp also struck with a TRIENZA cachet.
Trienza was a phosphate carrier owned by British Phosphate Commissioners.
(A British gentleman's coll)
Shipmail paquebot Sydney to Sydney - uncensored. (ex Millet coll.)
Censored to Australia, cancelled in Waroonga and redirected. (Klinger coll.)
1 February 1939
19 July 1940
5 October 1941
7 October 1942
(new 2/2020)

3 March 1947
Shipmail from Tanna to Sydney and then by air to Suva. That's written on the cover. Machine cancel Sydney 3 March 1947. The rate would have been
calculated by adding the air surcharge to the normal postage. 20g letter to Suva 30cg, air surcharge Fiji 25 cg per 5gr so minimum was 1Fg30cg possibly.
But this looks like a heavy cover, so maybe higher postage. On the cover there are used 80cg...a 10gr cover??? (ex Millet coll.)
TAMBUA arived in Sydney on 3 March 1947 9:52 a.m. coming from Suva says the Sydney Morning Herald on 4 March.
She belonged to the Colonial Sugar Refining Company. And yes, there was air mail service to Fiji on 4 March 1947 at 1 a.m. via New Zealand says
the Daily Commercial News and Shipping List (Sydney) of 3 March. But there are no further markings on the cover to confirm this routing.

10 November 1958
(new 4/2020)
Paquebot Sydney on a cover to USA. (Klinger coll.)