Many of Mr Burton's emporia built all across the country during the early years of the last century were noted for their fine art deco styling and this one at the top of Whitefriargate is a particularly splendid example with black marble and gold painted windows. Shame then that, when the ground floor was renovated some years back, this was all thrown out along with the baby and the bath water.
PS: Following a comment from Steffe I've had a root around the web and come up with this not very clear picture from 1953. As was the style back then everything was monochrome and cars drove on what are now pavements, how quaint. Anyhow I hope you can make out what the old shop front, on the left, was like. There's a bigger version here.