The conical playground sculpture in Stockholm's secret park

Tufsen, also known as Tuffsen, is a lekskulptur in the art of Egon Møller-Nielsen. It was built in 1949 in Parkleken Humlan in Humlegården in Stockholm, and it was the first example of a lekskulptur in Sweden. Tufsen, stands at two meters high and weighs nearly seven tonnes. It was made in collaboration between Møller-Nielsen and Stockholm's city park director Holger Blom.

The name Tufsen was given by Mona, the daughter of Møller-Nielsen and Birgit Åkesson. Tufsen is made of stengöt, concrete mixed with marble crosses. Møller-Nielsen also made the well-known 20 ton stengötlekskulpturen Ägget in 1950. Three lekskulptur in the same material, Snäckan or Spiral, were made in 1951 for Stockholm's city, but have since deteriorated so much that both examples have been removed. Tufsen can be found at five places in Stockholm and in a few isolated examples in Örebro, Malmö, Göteborg and Lund. An example of Tufsen was also found in Kristinehamn, but was destroyed in May 2003.

Sources: Wikipedia, OpenStreetMap, Wikidata, Wikimedia Commons