Blackfriars Bridge and Holborn Valley Viaduct Opened, 1869, a copper medal by G.G. Adams for the Corporation of the City of London, coronetted bust of Victoria left, rev. City shield dividing views of both bridges, figures of Londinia and Britannia at sides, 77mm (W & E 1126.1; BHM 2906; E 1604). Extremely fine; in black leather gilt-blocked case of issue £150-200