A iron red and gold Ying-Yang octagonal dish, Qing dynasty late 19th century. Whit seal mark in red.

The Collection of Hjalmar Olsson (1902-1990), Gustavsberg, Acquired from Estrid Ericson, Svenskt Tenn, Stockholm.
Hjalmar Olson was president of Gustafsberg Porcelain Factory 1937-1968, and a Vice Chairman of LKAB 1962-1973. He was elected in 1942 as a member of the Academy of Engineering Sciences, where he was 2nd Vice Chairman from 1954 to 1956, and was appointed as the first honorary member in 1963. He received his degree in 1962 honorary doctor of technology at the Royal Institute of Technology in Stockholm.
As an engineer he studied modern porcelain industry in Germany. This took him to Gustafsbergs porcelain factory already in 1929.
With his great interest in art and craft, he built up a private collection where quality was always of utmost importance. With help from close friends like Estrid Ericson, owner of Svenskt Tenn, he created his collection during the middle of the 1900's.