unknown UK Ww2 Grenade or SOE device

[ludokhan]

A strange object has been found by the Belgian EOD group that appears to have an English detonator.
In the absence of precise identification, I placed it here under the name 'grenade'.

( up to moderator.. )
(find in Antwerp , size +/- 65mm diameter , 220mm long )
Is it possible for one of you to identify the detonator and at the very least, the device?
Thank you.

 

[NOENKLE]

Dimensions are primordial for an identification....

 

[NOENKLE]

Of zoals op een examen recce bij Peerboom:
- Dit is geen munitie...
- Dit zijn geen punten!