• USA
    19 February 1937
  • Sweden
    6 December 1937
  • Finland
    1 May 1938
  • Denmark
    30 May 1938
  • Portugal
    28 July 1939
  • Spain
    10 March 1941
    (Barcelona)
  • Spain
    16 March 1942
    (Madrid)
  • West Germany
    9 June 1950