WW1 Brass shell case - please help to identify - General Ammunition Discussion - International Ammunition Association Web Forum

I found this brass shell casing at a thrift store and was drawn to it. My son, daughter-in-law and my daughter’s boyfriend all serve in the CAF. I would really appreciate help in identifying the shell casing marks on the bottom. I have read quite a few online so believe it is French made or made for France, it is from 1916 and that is about it. It is 13.5” tall and 3” in diameter. The only markings are on the bottom. I am including a picture of the markings. Thank you in advance for any as

Large calibre markings (The Western Front Museum)

The UNESCO training manual for the protection of the underwater cultural heritage in Latin America and the Caribbean

80cm Schwerer Gustav/Dora case and projectile - General Ammunition

WOE Dispatch – tagged #Seiko

What are some underrated firearms? - Quora

How to Find the Right Payment Gateway for Your Digital Wallet

Remington Arms gun factory to close after nearly 200 years

To Walk the Earth in Safety (2021) - United States Department of State

WEEKLY BRIEFING – News and events in and around San Diego

5.56×45mm NATO - Wikipedia

Front Sight - uspsa

A Telecommunications Industry Forum TCIF EDI - ATIS

Inert WWII German 10.5cm Brass Shell Case - Militaria

Pair of WW1 British Brass Artillery Shells Dated 1915 at 1stDibs

WW2 German, Soviet, Allied militaria, uniforms, awards, weapons

75mm, M18 Shell casing, brass, dtd 1944

What size is this shell casing & is it Chinese or ?