Gold: Scott said, “I recall doing 150 sets of the teachers sets.
We only did the gold coins for the teachers sets. Receiving the Teachers set meant that you were specifically nominated to be a teacher of the Values and it was considered an honor. “
I don’t think all of the sets had the gold version. There are some that came with the silver coins.
Engraved Five Values: I’ve only seen that once before. I assumed it is just a concept design before they finalized the final version, which is the same as the design on your gold coin.
Bazooka would know, of course. If not, Takumi will as well.