Mentioned in another thread, and while I was messing about getting some better quality photos of some fakes, I decided it was about time I (TRIED) to get a decent pic of the die clash.

Here's a pair of comparison pics showing where the reverse comes through on the obverse.


This was the best example I had, mainly because not only did it have the harp background showing, but this has a clear line from the bottom of the shield showing too.
(also just FYI, I also found a die clash error on a 2013 standard 50p too)