A 75-year-old mural telling the story of Lewis Carroll’s Alice in Wonderland is being opened to the public on Saturday.

The vast mural was painted in Edinburgh’s Wardie Primary School – but is virtually unknown outside its staff and pupils.

It was painted in 1936, five years after the school opened, under the city’s Schools Beautiful scheme. Artist Robert Heriot “Peter” Westwater produced the mural, of scenes from Carroll’s most famous work.

On Saturday, the Decorated School Network project is hosting a day devoted to the artwork at the school.

The project is being funded by the Arts and Humanities Research Council.

The day has been organised by Dr Jeremy Howard of the University of St Andrews. He said: " This mural is one of only a handful of school artworks created in the 1930s as part of a public art programme.

“It is also important because it is designed to stimulate ongoing responses from the thousands of children going through Wardie Primary School over the last 75 years and in the future. Perhaps it can be said to be owned by those children."

The Schools Beautiful programme was cut short by the Second World War. Before that, at least four schools benefited from it.

Craigmillar Primary School gained murals from John Maxwell and Alexander Inglis, Prestonfield primary received a bronze fountain group by Tom Whalen, and stained-glass panels were installed at Cameron House Nursery School by William Wilson.