Coronation Souvenir June 1953

When trying to find something for the Tiny Tuesday challenge - "something from a box or drawer of bits and pieces, or maybe your handbag" - I looked into a box with many vintage metal and wooden tins. This one was really lovely even though it is not any of the oldest ones in the box (and not suitable for the TT challenge either). 

I wander, who had been in England at the time for coronation of Elisabeth II...?