| Description | Close up view of booster and governors; legend "Formby Governor House In the foreground is the Bryan Donkin booster connected to the non-return valve and inlet pressure regulator. In the right background is the Electroflo Panel: centre background the electrical control switches adjacent to the Automatic Telephone Company's relay cabinet whilst in the extreme right background is the incoming electrical supply switches"; Ref M111S; dated 1 May 1946 |