Campbell Smith & Co Ltd were commissioned to undertake the re-gilding of the organ pipes as part of a major refurbishment of the organ casing at King's College Chapel, Cambridge. The pipes were removed by Harrison & Harrison, the organ restorers, to permit the most intensive deep clean since the 1930s, along with the repair and overhaul of the pipes. Some pipes were replaced, and others re-positioned as part of the scheme. While out of the organ, Campbell Smith renewed the gilding to all the case pipes and the pipes were extensively protected during their re-installation. Some of the smallest pipe diameters are measured in millimeters, while the largest 32" bass pipes, which run horizontally inside the screen, are big enough for a fully-grown person to climb inside. The overall restoration programme took nine months.