Identify Drum Magazine

[big ned]

Not DPM either, it's so close to a K and Bren drum that it must be of commonwealth origin.

On seeing this the other day I immediately thought possibly Indian made, but then couldn't find anything on the net to support that.

[pitfighter]

Here is one that looks very similar - including the rivets:
Vickers Class K / GO machine gun in "land service" modification, with stock, bipod and magazine:
It is the second firearm from the top - enlarge the pic.
Modern Firearms - Vickers G.O. / VGO / Class K machine gun (UK)
A magazine:
Drum magazine : .303 inch Vickers 'K' or 'GO' gun | Australian War Memorial

Yours is obviously missing the center plate and "winding" arm - and the leather handle attaches in a different place.
But - quite similar no - 97 round cap.

Google Vickers GO magazine - image search.

Edit - some better pics of the Vickers GO - close but no cigar methinks -
The Vickers Machine Gun - Accessories - K Gun

[Gunny Hartmann]

Here is one that looks very similar - including the rivets:
Vickers Class K / GO machine gun in "land service" modification, with stock, bipod and magazine:
It is the second firearm from the top - enlarge the pic.
Modern Firearms - Vickers G.O. / VGO / Class K machine gun (UK)
A magazine:
Drum magazine : .303 inch Vickers 'K' or 'GO' gun | Australian War Memorial

Yours is obviously missing the center plate and "winding" arm - and the leather handle attaches in a different place.
But - quite similar no - 97 round cap.

Google Vickers GO magazine - image search.

Looks pretty similar to me!...

[WillC]

Looks
To be some sort of bren mag

[lithgow]

Was there a drum mag for the Vickers-Berthier used by the Indian army as a Bren equivalent before and during the war?

[HARRY THE MOLE]

It is similar to the drum magazine used on the Beardmore-Farquhar LMG.

[pitfighter]

It is similar to the drum magazine used on the Beardmore-Farquhar LMG.

Loved looking that one up, thank you, this is why this sort of exercise is fun - not quite it though, IMO - check out the rivet placement.
Beardmore-Farquhar Photos « Forgotten Weapons

[m3bobby]

Looks
To be some sort of bren mag

It may have started as a Bren mag but as said previously it certainly won't fit anymore.

[m3bobby]

Was there a drum mag for the Vickers-Berthier used by the Indian army as a Bren equivalent before and during the war?

I've compared to a VB and a Besal and it's neither of those.

[Villafuego]

Pretty sure it's the drum for a .303 Hefah Mk1.....looks like it's missing the winding key and some internals.....