![Oystercard fragment, river bank, South Bank, Thames, London, 8th May 2013](http://wilsonyau.co.uk/wp-content/uploads/2013/06/180_Oystercard_Thames_2013-May-8th_iPhone_600px-Watermarked.jpg)
iPhone drawing
The tide was low and I mudlarked on the banks of the Thames. I found no treasure, mostly rocks and sand and a fair bit of rubbish. One piece of flotsam that caught my eye was a fragment of Oystercard. Perhaps someone treated it like a credit card and cut it up, then for added security they disposed of it at different sites. I wonder where the other pieces went?