• USA
    29 March 1937
  • Canada
    1 May 1937
    (Saskatoon, Saskatchewan)
  • Sweden
    6 September 1937
  • Denmark
    19 February 1938
  • Netherlands
    25 February 1938
    (Utrecht)
  • Belgium
    13 May 1938
    (Brussels)
  • France
    9 December 1938
  • Portugal
    29 March 1939