France, Napoleon III (1852-1870 AD), Gold 20 Francs, 1864 BB, Strasbourg Mint, Obv: laureate bust facing right, legend around "NAPOLEON III EMPEREUR", Rev: crowned and mantled arms divided denomination, legend around "EMPIRE FRANCAIS", date 1864 and mintmark BB in the exergue, raised stars and legend on the edge, 6.4g, 21.24mm, (KM # 801), almost uncirculated, Rare.