The ROC Museum holds what is the national collection of ROC equipment and memorabilia from its early days up to the 1990’s, and still actively adding to it. There are approximately 10,000 items the majority of which are catalogued.

The Collection comprises; Uniforms, Plotting equipment (aircraft & fallout), 1991 Control furniture and fittings, Data processing equipment (paper tape & computer), Posts operational equipment, Posts domestic equipment & furniture & fittings, Manuals, Operational Procedures and Instructions, ROC Archive, Communications equipment (experimental and operational – historic & modern), Images & media, ROC Official Records of Service cards medal slips etc.