Princess Kate Marking The 150th Anniversary Of The London Underground

Mar. 20 2013, Published 1:30 p.m. ET
Princess Kate, Duchess of Cambridge

Kate, the Duchess of Cambridge, reacts as she is presented a badge that says "Baby on Board", normally available to pregnant passengers to encourage others to give them a seat, watched by Britain's Queen Elizabeth II, bottom, at Baker Street underground station in London, for a visit to mark the 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Princess Kate, Duchess of Cambridge

Kate, the Duchess of Cambridge, reacts as she is presented a badge that says "Baby on Board", normally available to pregnant passengers to encourage others to give them a seat, watched by Britain's Queen Elizabeth II, bottom, at Baker Street underground station in London, for a visit to mark the 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Princess Kate, Duchess of Cambridge

Kate, the Duchess of Cambridge, reacts as she is presented a badge that says "Baby on Board", normally available to pregnant passengers to encourage others to give them a seat, watched by Britain's Queen Elizabeth II, bottom, at Baker Street underground station in London, for a visit to mark the 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Princess Kate, Duchess of Cambridge

Kate, Duchess of Cambridge arrives at Baker Street Underground Station to Mark 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Princess Kate, Duchess of Cambridge

Kate, Duchess of Cambridge arrives at Baker Street Underground Station to Mark 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Queen Elizabeth II and consort Prince Philip

Kate, Duchess of Cambridge arrives at Baker Street Underground Station to Mark 150th anniversary of the London Underground, Wednesday, March 20, 2013.
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Princess Kate and Queen Elizabeth II

Kate, Duchess of Cambridge, and Queen Elizabeth II arrive at Baker Street Underground Station to Mark 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Princess Kate, Duchess of Cambridge

Kate, Duchess of Cambridge arrives at Baker Street Underground Station to Mark 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Princess Kate, Duchess of Cambridge

Kate, Duchess of Cambridge at Baker Street Underground Station to Mark 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Princess Kate, Duchess of Cambridge

Kate, Duchess of Cambridge at Baker Street Underground Station to Mark 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Princess Kate, Duchess of Cambridge

Kate, Duchess of Cambridge at Baker Street Underground Station to Mark 150th anniversary of the London Underground, Wednesday, March 20, 2013.
Princess Kate, Duchess of Cambridge

Kate, Duchess of Cambridge at Baker Street Underground Station to Mark 150th anniversary of the London Underground, Wednesday, March 20, 2013.