Drawing with correction strips

"Sijbren Ridsert (Siep) van den Berg (Tirns, January 14, 1913 – Amsterdam, October 27, 1998) was a Dutch painter and sculptor known for his progression from naturalistic painting to abstract constructivism. The son of a blacksmith, Van den Berg began his career as a house painter after attending trade school. However, he had artistic ambitions early on, visiting Frisian painter Jacob Ydema in 1930 to discuss his aspirations. That same year, he enrolled in evening classes at the Minerva Academy in Groningen, where he studied under Jan Altink and became acquainted with artist Gerrit Benner. After completing his studies in 1933, Van den Berg co-founded an advertising agency with Oscar Gubitz. His artistic potential was recognized by Hendrik Werkman in 1937, who encouraged him to pursue art full-time. In 1939, Van den Berg rented a teahouse in the Sterrebos park in Groningen as a studio. He married Werkman’s daughter, Fie, in 1943, and after World War II, studied at the Académie de la Grande Chaumière in Paris. Van den Berg moved to Amsterdam in 1954, establishing a studio on the Brouwersgracht while maintaining his teahouse in Groningen. Over time, his style evolved from naturalism and impressionism to cubism and eventually to geometric constructivism. A significant setback came in 1966 when he developed Guillain-Barré syndrome, sidelining him for nearly a decade. He later resumed work with an even more abstract focus. A self-taught sculptor as well, Van den Berg created several notable works, including Libbensline (Life Line), donated to his hometown Tirns in 1983 and unveiled by Queen’s Commissioner Hans Wiegel. In 1986, the Humanistische Omroep aired a documentary featuring Van den Berg discussing his life and artistic journey."