I never met such people determined to control detail. If I publish the Keystone everyone will know about the Tank, treasonous.
The Stone is about success, Mirror image of features on the Moon, supposed to represent ruin, some altered, some new. A torch needs moving around to make shadows with a magnifying Glass.
We say it is the modern Holy Grail because of God's face on the Moon, the Sacred Heart shape & the Scripture calling Christ the Keystone.