A mat-backed, black and white, display photograph taken at the official opening of the Nuclear Power demonstration (NPD) reactor at Rolphton, ON in 1962. The artifact measures 51 cm by 41 cm. The speaker at the podium is J.L. Gray, President of AECL. Immediately to his left is W.B. Lewis and next to him is The Honorable John Robarts, Premier of Ontario. AECL photograph 3237-25.