While I don't yet have a mint stamp, here are three different shades of the 63P4 Proof (card format is P4).
This first one is the color closest to the blue shade of the issued stamp.
The second one is a deeper, brighter blue than the issued stamp.
The final example is what I'm calling a dusky blue shade, for lack of a better term.
These would have been the result of the different printings. I'm still looking for information on whether these proofs have ever been tied to a specific printing, but have not found anything for the 63P4 that definitively ties them to one.
Posted 06/25/2018 04:55 am
