I always think it's lucky when you find a coin in the street, and am superstitious enough to think it's unlucky if you don't pick it up.
So when I saw this coin in Hammersmith Grove, Shepherds Bush, as I was cycling to work, I had to screech to a halt, go back, take the picture and put it in my pocket.
And yes it was what I thought: a two pence piece standing on its side, with no visible means of support (no chewing gum involved.) In all my years of street coin collecting, I have never seen this - and in the middle of a busy road too.
(PS: Good to see Google Adwords finding an ad saying 'Learn to Trade Currencies' to sit alongside this.)