For any readers interested in the history of Sloyd following Otto Salomon's time as director at Nääs, this paper by Tapani Kananoja might be of interest. Interestingly, Carl Malmsten, mentor and teacher of James Krenov was director at Nääs for a time after 1920. He agreed with some other critics that the model series were too restrictive of creativity and was among those who opened the teaching of Sloyd to more experimental design.