How many versions of the painting "The Scream" did Edvard Munch produce?

"The Scream" is a composition created by Norwegian artist Edvard Munch in 1893. He produced two versions in paint and two in pastels.

Edvard Munch (12 December 1863 – 23 January 1944) was a Norwegian painter and printmaker whose intensely evocative treatment of psychological themes built upon some of the main tenets of late 19th-century Symbolism and greatly influenced German Expressionism in the early 20th century.

The inspiration came from an afternoon when he was walking with two friends at a viewpoint on the Ekeberg hill, from where the Oslo landscape could be seen. He writes in his diary in 1891: "I was walking down the street with two friends when the sun went down. Suddenly the sky turned blood red and I felt a shiver of sadness. A tearing pain in my chest (... )."

In 1893 he painted his most well-known version, it was done in tempera on cardboard, it's found in Oslo’s National Gallery (Nasjonalmuseet).

The second version (1893), it found in the Edvard Munch Museum of Oslo, its colours are not especially vibrant and the whole painting appears as a bit washed out.

The version of 1895 is Munch's most vibrant and some consider it more valuable due to a handwritten inscription the artist wrote on its frame. It has been in private hands ever since 1937.

In 1910, he made the fourth version, where the main figure does not have eyeballs.It is also in the Edvard Munch Museum.