A Dog on Parade

This is an interesting image taken sometime in the 1950’s.  The location is obviously Gambia Square outside PHILOMEL Quarterdeck.  Can anyone remember being on parade on this occasion,

What was the dogs name?  Nelson 

What did the Inspecting Officer say to the Dog?

Who was the 4 ring captain?  Possibly Capt M L Hardie, DSC, RN who was CO PHILOMEL 10 Jul 1952 – 08 Nov 1954  

Who was the inspecting officer?  Governor General Lieutenant General The Lord Norrie GCMG, GCVO, CB, DSO, MC 2 Dec 1952 – 25 July 1957

When was the parade held?

Can you identify any other person in the image?