A Geographical Mis-Hat
New York and London are probably among the easiest to recognize cities in the world. That is why this designer confusing the two can not even be called a geographical error. Even people who know nothing about geography can distinguish the two by their monuments.
Unless perhaps the designer thinks London is a neighborhood in New York, which makes even less sense. This hat might have been designed for the American Dr. Who that, travels around in a British phone booth and wears cowboy boots. That version of Dr. Who is yet to exist though.