“Keystone: The wedge-shaped stone at the center point of an arch regarded as locking the other stones of the arch in place.”
Excerpted from: Diamond, David G. The Bulfinch Pocket Dictionary of Art Terms. Boston: Little Brown, 1992.
“Keystone: The wedge-shaped stone at the center point of an arch regarded as locking the other stones of the arch in place.”
Excerpted from: Diamond, David G. The Bulfinch Pocket Dictionary of Art Terms. Boston: Little Brown, 1992.