A painting of David H. Koch '62 in Building 66 was obscurred by a painting titled Tarnished Horizons set in place by anonymous persons Sunday evening. The painting depicts a flaming offshore oil rig scorching the sea and sky. Kevin Ly–The Tech Nov. 13, 2019 Facebook Twitter Reddit Print A painting of David H. Koch '62 in Building 66 was obscurred by a painting titled Tarnished Horizons set in place by anonymous persons Sunday evening. The painting depicts a flaming offshore oil rig scorching the sea and sky. Kevin Ly–The Tech