@Bobby De La Rue
Quote:
These are postmarks applied on entry into France, very likely at Marseilles. La Compagnie des Messageries Maritimes commenced a service to Australia in 1882, calling at Adelaide, Melbourne and Sydney before going on to Noumea.
Unfortunately there's not enough of the postmark to determine which of the 24 possibilities it could be. These stamps were superseded in 1888 so the postmarks will date between 1882 and 1888. I wonder if they were originally on a letter posted in Noumea?
I have many facts to refute most of the above comments.
https://www.stampcommunity.org/uplo...LRFrance.jpgEven though not visible in entirety, it can safely be deduced that the octagonal postmarks on both stamps are the same.
Both are Fr. Maritime Ligne T (Marseille-Nouméa) markings used in Route 3 (As Suwais, Misr-'Adan, Yaman-Mahé, Seychelles-Saint-Denis, Réunion-Port Louis, Mauritius-Adelaide, Melbourne, Sydney, Australia-Nouméa, Nouvelle Calédonie).
The inscription above the date (in central circle) is
POSS. ANG which stands for
Possessions
Anglaises (English Possessions) and below the date is
PAQ. FR. T No followed by the set no.
Salles records 9 different types of Ligne T Poss. Ang. octagonal markings and among them, only 1 type (Salles 2.153/6) has thick border as are shown here on the NSW stamps.

Ref.
La Poste Maritime Française (Tome VI: Les Paquebots de l'Océan Indien Réunion-Maurice-Australie-Nouvelle Calédonie-Bombay-Océanie-Madagascar.
Raymond Salles.
private, Paris, France 1969
Chapitre III: Les Différentes Ligne T
Les Cachets à Date Ligne T de 1866 à 1903
B: Les Cachets d'Escale ou de Provenance
Provenances Colonies Anglaises (Type Divers); p.59
So, both Ligne T Poss. Ang. marks are from set no.
6 which incidentally was exclusively used from 08.30.1883. to 07.18.1887. period by Paquebot Salazie, a 4200 ton mail steamer of Compagnie des Messageries Maritimes, plying between Marseille and Sydney from 1883 to 1911, completing 25 voyages.
Paquebot Salazie
Secondly, Poss. Ang. marks were used on mail originating from Br. possessions en route Ligne T, here certainly on mail from Sydney, Asutralia.
Mail originating from Nouméa in Fr. possession Nouvelle Calédonie, sent in Ligne T, was always canceled with octagonal
COL. FR. marks denoting
Colonies
Françaises.
So, the marks here
used on board of Salazie after sailing from Sydney, not in Marseille nor the NSW stamps here were used in Nouméa.
If the dates were completely visible, it could have easily been ascertained in between which two seaports the stamps were canceled based on the ship itineraries.