Very rare book, cover page illustrated by and similar items

Extremely rare "Katrina" book from 1936, writer Sally Salminen, cover page illustrated by Tove Jansson's mother Signe Hammarsten-Jansson (HAM). In Swedish. Signe Hammarsten Jansson was born on 1 June 1882 in Hannas, Smaland, in southern Sweden. He studied at Hogre Konstindustrie Skolan in Stockholm, where he graduated as a drawing teacher. In the years 1905 ? 1912 he worked as a teacher in Stockholm. During that time he also made several study trips in Europe and studied e.g. sculpture in Paris for several years. Ham began to appear early as a signature in his works. In Paris, Signe Hammarsten met the Finnish sculptor Viktor Jansson, whom she married in 1913. The young couple moved to Finland the same year. Ham made illustrations and book covers for several publishers, as well as cartoons and caricatures for Finnish and Swedish magazines. Three children were born in the family: Tove in 1914, Per Olov in 1920 and Lars in 1926. In 1924, Ham started as a part-time draughtsman at the Bank of Finland's banknote printing office. At first he designed stock books, bonds and addresses. In 1926, the Post Office announced an open design competition for universal stamps, in which Hamkin participated but was not among the winners. Several different designers were still used in the design of stamps in the 1930s, but in the latter part of the decade and in the 1940s Hami can be said to be the main person responsible for the design of Finnish stamps. Tove Jansson, Moomin, Signe Hammarsten-Jansson, HAM, Lars Jansson