As promised, here are some pictures of the armours I took back in 2005, when they were out in front of the churches in Valetta and Vittoriosa. These cannons had been pulled out of the water some time since the second world war. I expect a Maltese reader can straighten me out on the provenance of these cannons!
I remember it was raining cats and dogs that day! You can see all the water on the cannon in the above pictures.