Kingsbridge puzzle made by Atlantic in Sweden 1950/60s. Interlocking. Artist is Margaret Dovaston. Margaret Isabel Dovaston (1884 – 1954) was a British artist who became particularly well known for her oil paintings of historical interior English genre scenes, often depicting groups of figures in Eighteenth Century dress. She spent her whole working life in the Ealing and Acton area of west London. Wikipedia.