Almost one in three people own an item of war memorabilia, ranging from guns and medals to uniforms, but few know how much they are worth, a new study has shown.

Research among 2,000 adults by insurance firm LV= revealed that items such as medals have stayed in the same family since being awarded.

Medals are the most commonly-owned type, although other examples include authentic army uniforms, and even weapons.

The report said values of some items had increased by almost a third over the past five years.

Selwyn Fernandes of LV= said: "With the centenary of the First World War this year, war memorabilia has soared in value. Much of this memorabilia has been handed down for generations, and remained in the same family, so will have a high sentimental value."