I have about 6-8 spitting Horse Quarters. Starting from the beginning of the die break from the horses mouth. And with the rest of the quarters I have, you can see the die crack get more and more prominent. The last one I have shows the die crack from the horses mouth all the way to the rim of the coin. Each quarter shows the progression from beginning to end. Is there a way of setting this up as a collection set?
That would be pretty neat to see. You should post some photos. Please use the full size option when you do.
Meow knows they have five quarter plastic coin holders that you could put them in to display the progression.
Unless there is a specific marker (such as a die scratch or die gouge) that can be identified on every coin, then there is no way that you can prove that the coins were struck by the same die.
@Justin Sr. Doing a progression set can be challenging but fun also. I have to agree with Chris though. You would need a higher power lens to look for specific die markers if you want to be sure they are from the same die. Die scratches may be the easier but die gouges can be small like a pin prick. It would be very unlikely for anyone to find the same coins from the same die from circulation. From a larger mint bag, maybe so. Capitol Plastics may have a blank quarter holder. Check at Wizard Coin Supply.