I come back to this coin in respect for a truly rare pocket-piece commemorative.
The current example does not need to be certified by any TPG
for us to appreciate it for what it is - someone out there purchased this ... and decided to make it a daily habit to enjoy the coin in their pocket ... along with keys, change, whatever.
Today it is a lovely testament to that person - a true pocket-piece coin.
Technical grade is as suggested above - appeal to knowledgeable collectors is off the charts.
Take a look at my other hobby ... http://www.finewoodcrafter.com
Too many hobbies .... too much work .... not enough time.