French Mortar ID and Date?

[Millsman]

Can someone ID this mortar for me? French WW1 or soon after?

 

[MINENAZ16]

Hello,
Nice trench mortar projectile "150mm bombe de tranchée T modèle 1917 Fabry"
Used during ww1 and still in service at the begining of ww2.
Very good condition and correctly repainted (fuzed 24-31mm PR 1916)







French ww1 battlefield

 

[Millsman]

Thanks very much. Quite advanced design for 1917.

 

[sgdbdr]

The patent : https://bases-brevets.inpi.fr/fr/do...376387&cHash=1a5921b4536a6599b24302af1fd2191a

Some references:
https://gallica.bnf.fr/ark:/12148/bpt6k6551938n?rk=21459;2
https://gallica.bnf.fr/ark:/12148/bpt6k6556251n?rk=42918;4

Cheers,

S.