Stained glass window in the ground floor in the office used as tourist information point, presented by Sir Henry F Miller, town clerk & city solicitor, Londonderry, Mayor of this city 1901 & 1902 (left lights), Sir John McFarland, Aberfoyle, Londonderry, J.P. of the Counties Derry & Donegal, High Sheriff of Derry 1904 & County of Derry 1905, Mayor of Derry 1908 to 1910 & 1912 (centre lights), and Matthew Ballantine, J.P. , Alderman of the City of Derry, High Sheriff of Derry 1902, Mayor of Derry 1904, 1905 and 1911 and one of his Majestys Deputy Lieutenants of the County of the City of Londonderry, 1910 (right lights). The lower left and lower right light display Derry in 1688 and 1793, respectively. The stained glass window was manufactured by Campbell Brothers in Belfast, destroyed in 1972 by an IRA bomb, and restored by Calderwood Glass, Newtownabbey.