When little Eddy Palmer visited an historic railway building in St Albans, he never thought he would be making a bit of history.

For Eddy, aged three, turned out to be the 15,000th visitor to the St Albans South Signal Box and with members of his family he tried his hand at ringing the bells and pulling the levers.

Signal Box Trust chairman, Tony Furse, commented: “We are proud to have reached this milestone in the recent history of our 124 year old signal box. We are delighted to welcome the many families and children who come to visit this hidden gem and to learn about the city’s transport past and view the modern railway at the same time.”

St Albans South Signal Box is next open on the weekend of March 12 and 13 as part of the Big Weekend – Hertfordshire event.

On Saturday the box and garden will be open from 2pm to 9pm with lamps lit around the site to guide visitors and on Sunday the box will be open from 10am to 5pm. Entry is free.