J. H. “Harry“ Collins was a long service (1949-1986) employee of AECL at CRNL who served in a number of important management roles, mostly associated with the operation of the NRX and NRU reactor. On retirement, he was presented with a digital clock with featured two short sections of reactor fuel rods – one a short section of 4.3 cm diameter, natural-uranium metal, NRX fuel rod and the second a section of 6.3 cm diameter, natural-uranium metal fuel rod from NRU. The overall base of the memento is 33 cm by 15 cm. Uranium metal was used in the first loadings of both NRU and NRX. This gave way to uranium oxide in the mid-1960s.
