Miniature Russian silver & enamel book brooch, marked 84, with cyrillic makers stamp, the cover decorated in Royal Blue enamel and set with central Russian Lesser coat of arms and the dates 1613-1913 commemorating the Romanovs' tercentenary, the book opening to reveal images of past Romanov sovereigns until emperor Nicholas Alexandrovich, total weigth 10.15gm, 2.6 cm x 2.1 cm