HANOVER. William IV. 1830-1837. Æ Medal (51mm, 61.85 g, 12h). The Opening of London Bridge. By B. Wyon. Dated 15 June 1825 and 1 August 1831. WILLIAM THE FOURTH, bare head right / LONDON BRIDGE, view of London Bridge; in exergue, COMMENCED 15 JUNE 1825/ OPENED 1 AUGUST/ 1831. BHM 1544; Eimer 1245. Brown surfaces, a few minor spots and deposits. EF.