The largest former Great Western Railway signal box still standing is to open to the public tomorrow (Saturday).
The lease for the signal box is now held by the volunteers at the Chinnor & Princes Risborough Railway Association.
The signal box has been out of use as a listed building for 25 years but railway volunteers have been working on restoring it to its former glory.
A new staircase has been built, 200 panes of glass have been replaced in the windows and a new replicate nameplate has been added to the building.
The signal box is being opened to visitors between 10am and 3pm.
Entry is free to the box which is located at Princes Risborough North.
There is also a chance for visitors to learn more about the history of the box and the 800 metre line between Chinnor and Princes Risborough.
Cllr Matthew Walsh, the town mayor of Princes Risborough unveiled the signal box nameplate on Monday July 4, at the start of Risborough Festival Week.
Danny Woodward, chairman of the association said: “Our dedicated band of volunteers have not only saved this historic Great Western Railway building, they have also saved a widely recognised landmark that millions of Chiltern Railways’ passengers and townsfolk will be familiar with.”