I posted about this remnant of Beverley's town walls so many years ago there's no harm in going back again. Back then I told the history of the North Bar but what I didn't mention and what few these days might credit is that the local bus company had special buses made with a sloped roof designed to pass under the Bar. Nowadays a single decker passes through with no bother but forty five or more years ago it was a much tighter squeeze. And yes I do remember seeing these buses when I was so much younger than today.
Photo 'borrowed' from here.