I was browsing the D&AD website and discovered that this new design had infact won a Black Pencil Award and when put together in the right order, to coins actually make the royal coat of arms representing England, Wales, Scotland and Northern Ireland with the pound coin as the model to create the puzzle.
Obviously, there had to be some sort of mistake along the pipeline when creating these new coins. It turned out that a large batch of the 20 pence pieces were made without the year they were produced. If you were able to find one of these then they would have been bought for £50 by a certain company.
So if you find one, you know what to do with it!