The unsigned painting turned up in 1970 with the estate of the Norwegian industrialist Christian Nicolai Mustad (1878--1970). The family knew about the painting and Mustad had bought it early in his collecting career, maybe as early as 1908. They also knew that it was a fake. The painting had initially been bough with the help of and advice of the director of the National Gallery in Oslo, Jens Thiis (1870--1942).