Largest Kennedy Cud and Die Fragment Mated Pair?
This is a fascinating die fragment and mated cud error. The die chip is amazing as it's from a proof die and has spectacular mirrored surfaces.
Is this the largest JFK cud error? I've looked around and haven't found a larger one.
Also, is this cud categorized by by anyone? I ran across Ken Glickman's KennedyHalfDollar.com website which has a cud list but it doesn't include proofs: