the arched top with scrollwork carved in deep relief centred by a cartouche with 'J.L.W' monogramme,

This massive stone cresting, the ornate cap to a window bay, along with its partner (see stockcode 25404) were removed on the demolition of the impressive Edwardian stone building adjacent to, but pre-dating, the famous Art Deco "Simpsons" building on Piccadilly (currently occupied by Waterstones).