Since the medal was not an official one, it could not be worn with military uniforms--the official award for the siege of Kimberley was a bar to the Queen's South Africa Medal.
Since the medal was not an official one, it could not be worn with military uniforms. The official awards for the siege and relief of Kimberley were, respectively, the "DEFENCE OF KIMBERLEY" and "RELIEF OF KIMBERLEY" clasps to the Queen's South Africa Medal.