In Sydenham, East Belfast. I used to play in this park as a child in the 1960s and 1970s. This view is from an earlier era and that definitely looks like an Olympic class liner in the background, Olympic, Titanic or Britannic?
Cap badge from WWI…
From a picture of the grandfather I never met…
It’s a crown with crossed Vickers machine guns, although I must admit it looks like something else.
By Maguire & Paterson (N.I.) Ltd.