Agent TypePersonActivities & OccupationsPhysicistsHistoryIn 1909 and 1910, Henry Grayson built a diffraction grating ruling engine. He was awarded the Syme Prize and his findings and achievements were published the Royal Society of Victoria. After Grayson's death in 1916, his papers, the grating ruling engine, the microscope and a Zeiss microscope specifically constructed by Zeiss for Grayson were left in his widow's custody. The papers were later destroyed and the equipment was sold. The grating ruling engine was purchased by Sir Thomas Lyle, the microscope bought by the Natural Philosophy Department and the Zeiss objective purchased by the Pathology Department.