This virtual cache is on the Open University campus which is accessible to the public only during daylight hours. The cache is a building in plain sight.
It was Harold Wilson, Prime Minister 1964-1970 and 1974-1976 who created the Open University, tasking Jennie Lee as responsible minister, effectively reporting directly to him. The Wilson building was the first major building to be completed and remains one of the largest on campus. It was mostly built in 1971, with K block built in 1978 and the H block extension added in 2000.