MALTA ARMED FORCES - PASSOUT PARADE

[Paul S.]

So would I be correct in thinking that this type of heavy AA gun would normally be placed onto a thick circular concrete base? In more recent years I have noticed one or two such circular concrete bases where I suspect there could have been an AA emplacement during WW2.

You are correct when the gun was in a 'fixed' or long term placement. More mobile guns - those that moved with the troops, i.e. during the Desert Campaign, etc. basically set up where needed.