The studio contents of one of Scotland's seminal modern artists, George Wyllie, are to be sold at auction.

Wyllie, who died in 2012, aged 90, created the Straw Locomotive in 1987, the Paper Boat in 1990, and the Running Clock outside Glasgow's Buchanan bus station, and has been lauded as one of the most influential artists of the past 50 years.

A George Wyllie Foundation, featuring a large amount of his most important works, has been established and will be formally launched next month, but the sheer amount of material in Wyllie's studio – totalling, among other items, six tonnes of metal works – mean that his family are happy to sell the rest of his works to the public.

The studio contents from his home in Gourock, Inverclyde, will be sold at a Lyon & Turnbull sale in The Lighthouse in Glasgow on the 27 August. They include many items never seen in public before, with prices ranging from a few hundred pounds to several thousand.

Works include paintings, sculptures, sketches, prints and numerous examples 
of Wyllie's distinctive creative wit.

Louise Wyllie, the artist's elder daughter, said: "We feel happy about it because it means members of the public will get to have some of his work, and it will really vary in price.

"There are some interesting works there, there's a full metal five-a-side football team, some of his early paintings and, many sculptures. It is very interesting."

The 44 works, valued at £40,000, include a second version of the famous straw locomotive that hung from a crane at the Glasgow Garden Festival.

Wyllie's full scale rendition of a classic steam train, which hung from Glasgow's Stobcross crane during the summer of 1987, was a commentary on the loss of the West of Scotland's traditional heavy industries and was ceremonially burnt.

The second version which is for sale, valued at £10,000, is a metre-long replica of the original, and featured in the recent retrospective of Wyllie's work.

Gavin Strang, director at Lyon & Turnbull, said: "We are delighted to be selling the studio contents of such a fantastic Scottish artist."

Wyllie's work included not only scuplture, but performances, theatre, public art and paintings, installations, film and writing.

Last year's year-long celebration of the artist's life and work, The Whysman Festival, was honoured with a Creative Scotland Award.

More than 12,000 people came to see the retrospective exhibition of his work, held at the end of 2012 in Glasgow's Mitchell Library, and a number of items from that show are to be included in the sale.

Ms Wyllie added: "This is an extraordinary collection of art from my father's studio.

"Many things have never been seen in public before.

"I hope that the future owners of these works will get as much pleasure from them as my father certainly did."

On the same day, the Lighthouse will also see the sale of work from the studio of artist John Cunningham.

The works, valued at £100,000, are from his studio flat in the centre of Glasgow. John Cunningham, who lived from 1926 to 1998, attended the Glasgow School of Art and subsequently held various teaching posts.

He was appointed to the Glasgow School of Art in 1967 and became a Senior Lecturer before his retirement in 1985.

On 31 August, just days after the sale, an Origami line of paper boats, made by school children involved in the George Wyllie schools' project, will be launched into the Clyde at the new Beacon Arts Centre in Greenock.