Hold your breath and smile!

This photo was taken in the early 1940s, perhaps at Luton Hoo, the home of Sir Harold and Lady Zia Wernher.

This photo had to be taken rather quickly before everyone collapsed in laughter. 

From left to right:  Lady Rachel Davidson (Lady in Waiting to the Duchess of Kent),  the Marchioness of Milford Haven, Lady Zia Wernher, Georgina Wernher, the Marquess of Milford Haven, Prince Philip of Greece and Denmark, the Duchess of Kent, Sir Harold Wernher, Myra Wernher and an unidentified woman ... perhaps Baroness Agnes de Stoeckel. 

The photo was probably taken before 1944 when Georgina married Harold Phillips.

The Marchioness of Milford Haven and Lady Zia were sisters.  Georgina and Myra were Sir Harold and Lady Zia's daughters.  Lord Milford Haven and Prince Philip were first cousins.  Princess Marina and Prince Philip were also first cousins.   The Duchess of Kent and Lady Zia were cousins as well.