Trumpeter Martin and Brigade Mascot Willie Woods

Photo reference number: 1748

The 3rd Brigade R.H.A. at Newport Barracks supplied trumpeters for the Royal unveiling ceremony, and the photograph shows the Brigade mascot (Master Willie Woods) alongside Trumpeter Martin, during an interval when a rehearsal was in progress.

As far as we know the Cenotaph was not unveiled by a 'Royal' - does anyone know what unveiling is being referred to above?

The image, top left is cropped from a postcard, top right a contemporary news report.