Husmodern nr 26 1936
Allers mönstertidning nr 13 1939
Hela familjen i sticket, Damernas Värld 1946
Actually I can think of many reasons why not, but I'm trying to have the same positive attitude as ladies' and crafts' magazines from the 1930s and '40s. Besides: commercial swimsuits were also made from wool. If they were intended for swimming and not just sun bathing. Unfortunately for the adventurous knitter these patterns are only in Swedish.