This busy traffic node sits at the northern end of Whitehall where it meets Trafalgar Square and The Strand. This iconic red London bus is on Route 12 to Dulwich Library.
1888 puts it in the William Ewart Gladstone era; but is it he? If not, who then? There are apocryphal stories of notable Conservatives confusing the NLC for a public convenience when on their way to the House. Perhaps this is one of 'them' leaving.