They may be out of business Brian, but having been involved with British manufacturing most of my working career, I can say they go through more variations and iterations of their names. It's entirely possible they were bought, reorganized or otherwise reincarnated with another name, which likely may incorporate the Vickers name. The original Vickers name originated in the Sheffield area as metals manufacturers. Out of that company, many other Vickers groups were spawned including the gun manufacturer of WW1 fame. There were a few joint companies over here from Vickers parentage also; notably Sperry-Vickers, one of the only two US periscope manufacturers (the other being Kollmorgen)
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