Here are a two in my collection that I really like. The first one is a 1959 DDR. At the time I sent it into NGC only 1 or 2 had been certified. NGC liked the coin so much that the picture they have posted on their website is my coin. At the time I sent this in, it was the highest graded one in this variety (MS64FBL). I also had the first MS65 graded at NGC and sold it on Teletrade (was bought by Stacks/Bowers) for $600. Now they are common in the higher grades. The second one i found was the 1951 PF DDR and was found shortly after Wexler did his article on the first find of this variety in Coin World. I called him up after I cherrypicked it and he said that it is either the second or third one he knew of. At the time of certification it was the highest graded one and only one that was CAC'd. I haven't looked since, but I am sure that other nicer ones have been found.