unknown mortar bomb ,can anyone advise?

[storme30]

Hello..attached 5 pics anyone know anything about this mortar? best regards John

 

[ron3350]

I have a similar launching primary cartridge in a French Brandt 81mm mortar L2A2 Illuminating dated 1-69.
Same primary in a French Illuminating mortar dated 1-64.

 

[Alpini]

Same discussion here, but without a 100% answer: https://forum.cartridgecollectors.org/t/mortar-propulsion-cartridge-headstamp/41504

 

[Alpini]

Factory "BTT" is Hotchkiss-Brandt in the city Tulle

 

[MINENAZ16]

Hello..attached 5 pics anyone know anything about this mortar? best regards John

Typical remnant (base) of a French Brandt illuminating projectile 81mm (model F1 for example, lot of variants of this model ; also exported).
I assume repainted black.

 

[storme30]

looks like you have nailed it ..many thanks for your time and effort

 

[greif]

Below a data sheet dated may 1973 of 81 mm Brandt projectiles.

 

[storme30]

Fantastic... many thanks