Opening of the Coal Exchange 1849 27mm diameter in White metal by Allen & Moore, Obverse: Crowned Gothic style portrait of the Queen left H.M.G.M. QUEEN VICTORIA, on surrounding wide border : BORN MAY 24th 1819 CROWNED JUNE 28 1838. MARRIED FEB : 10 1840, Reverse: View of the building THE NEW COAL MARKET, LONDON, Exergue: OPENED BY HER MAJESTY OCT. 30 1849, 6.14 grammes, BHM 2356, NEF with some rim nicks