A 35 cm diameter, silver-plated, platter awarded to R. (Ross) B. Shields to commemorate 25 years of service with NRC/AECL. Ross Shields was one of the pioneers of the nuclear industry, having joined the Chalk River Laboratories in January 1946. He spent most of his career in instrumentation and in particular in the Reactor Control Branch. He retired from AECL in 1978.