A history enthusiast has launched a crusade to save two traditional city telephone boxes.

It is the latest fight for Graham Wanstall in a 25-year campaign, which has seen him save 100 of the iconic kiosks in Kent.

Mr Wanstall, an author, has now turned his efforts to two K6 Jubilee boxes in Stour Street, which are at least 70 years old.

He decided to act after learning that they were under threat as part of a review of pay phones.

The pair of K6s are unusual as both are from the same era, either King George V or George VI.

The other two pairs of K6 kiosks in Canterbury are in Best Lane and North Lane and are from mixed eras.

In an effort to save the Stour Street boxes, Mr Wanstall has applied to get them listed with English Heritage, an application which could take up to six months to decide.

In order for a listing to be successful, the K6 or Kiosk No. 6, which was introduced in the UK in 1936 to commemorate the Silver Jubilee of the coronation of King George V, must meet strict criteria including being overlooked by two already listed buildings

The pair in Stour Street are surrounded by three buildings which are listed and protected against alteration because of their links to specific historical personalities, events, or architectural movements.

Mr Wanstall, from Dover, said: "Although this is a personal campaign I have had a lot of support from people, all wanting to help save the kiosks.

"They are of such importance to our heritage and really should be looked after.

"People should really take notice of these well-known, iconic K6s and fight to keep them.

"Although I have been campaigning to save the kiosks for around 25 years, other people across the country are also battling to make sure they are seen with the importance they deserve."

Philip Davies, English Heritage’s planning and development director for London and South East England, said: "The classic red telephone box makes a significant contribution to the character and appearance of many historic areas. They are an important symbol of national identity.

"English Heritage is working closely with BT and other national agencies to ensure that these much-loved icons can continue to play a role."