Glass bottles and a toilet were also found. A piece of 'spongeware' made by Bell's Pottery found on the seabed and cleaned up after being retrieved from the wreck of the SS Eagle. PIC: Naomi Watson.

And then what might have been an ordinary piece of what we call spongeware, gets turned into a piece of folk art. A piece of political collectible, because of what it says. And right on the top ...

Graeme Bruce, 65, from Oban, Argyll and Bute, was one of the divers (pictured) who came across the items near Arran, an island off Scotland's west coast, last summer.