Sherman with twin brens
 

Two photos of a twin bren AA mount on a Sherman. PA-213559 & PA-213561, by Alexander MacKenzie Stirton Mar.2, 1944. The archive caption reads 'twin brews', obviously a transcription mistake.

Cheers, Dave

And the second

Wow very interesting - wonder why the Brens aren't loaded in either picture

It might have not been a caption mistake-the chap look's like a tea drinker to me :D

Hi, the neat line of tanks would indicate they are probably in harbour, and if late war not subject to air attack. The image of the commander looks a tad posed as well. Nice photos all the same.
Cheers,
Dave

All shots definitely posed
 

The Mar.44 photo date means they were still in England. The photographers had probably seen enough accidental discharges from 'unloaded' weapons to insist that the mags be removed. This was probably a publicity photo to show the folks back home (and the enemy) that we had lots of brens to spare. Never seen any like this on the other side of the channel.

Cheers, Dave

Rams with twin MG Mounts
 

Here are photos of a Ram being tested with with a twin twin K guns and then twin Brownings. They can be found at the National Archives, RG 24, vol 9392 which contains folders of photographs excised from various CMHQ files prior to their being microfilmed.
Roger

Another view

With the Brownings

Is the sight featured in the second photo a standard fit or is this some kind of OP/command tank.

That would perhaps explain the gun mount better.

Twin Browning sight
 

I would need to check out the microfimed report to see if it sheds light on this but, the sight seems to be peculiar to the Browning mount, the K guns have a different arrnagement.