Russian silver and guilloche and en plein enamel 'Lily of the Valley' brooch, St. Petersburg, 1908-1917 plain round silver frame with applied rope-twist border, inset with an enamelled roundel painted with a spray of 'Lily of the Valley' flowers on a white and pale blue guilloche ground, 84 silver kokoshnik mark for St.Petersburg, 1908-1917, Cyrrilic maker's mark of 'G.P', diameter 4.5 cm