Queen Elizabeth, (commonly referred to as the Queen Mum) can be seen standing on the back of a train caboose waving to a crowd of people in Biggar, Saskatchewan. Union Jack flags and a sign reading "...Your majesties" can be seen in the background.

King George VI and Queen Elizabeth standing with three girls in girl guide uniforms and three other men in front of a passenger train car

Queen Elizabeth (later commonly referred to as 'the Queen Mum') and King George VI standing in front of the caboose of their train during a brief 'whistle stop' in Biggar, SK while on their 1939 Royal Tour of Canada.