From Roman relics to horned helmets: Mudlarking treasures unveiled

Twice a day, the depths of the River Thames are pulled back by the power of the moon, opening up its foreshore to the mudlarkers, those hardy folk who scrabble amongst the shingle for hidden treasures. Now, some of those treasures have been displayed at the London Museum Docklands.
Mudlarking has been going on pretty much since humans started dropping things into the river, and what was once scavenging by the poor is today a regulated practice with strict rules about what can and cannot be done