PNC Park baseball field in a keystone shape. 2"x 2" stainless steel.
Penn State design in a keystone shape. 2"x 2" stainless steel.
Carnegie Mellon University Hammerschlag Hall design in a keystone shape. 2"x 2" stainless steel.
Duquesne University gate design in a keystone shape. 2"x 2" stainless steel.