Short answers, pulled from the story.
Harding, Howell and Company opened its doors at 89 Pall Mall in London during the year 1796. The establishment operated under the name Grand Fashionable Magazine from that moment forward.
The store divided its inventory into four distinct sales areas to organize customer traffic. One section handled fur and fans alongside fabric intended for dresses while a second area focused on haberdashery items and fine jewellery pieces.
Business operations began in 1796 and continued until the firm closed its doors in 1820. The company survived twenty-four years of trade in the heart of London with no major interruptions or changes in ownership during those two decades.
Scholars often cite Harding, Howell and Company as a potential forerunner to the modern department store model because the combination of multiple product lines under a single management was unusual for the late eighteenth century. This approach anticipated the large-scale retail concepts that would emerge later in history.
Harding, Howell and Company opened its doors at 89 Pall Mall in London which sat within the St James's district of the city. That district catered to wealthy patrons seeking luxury items and exclusive goods near other establishments serving the aristocracy and upper classes.