A Stuart Devlin sterling silver 'Silver Jubilee' Surprise egg, 1977 London, with maker's mark Sd, special Jubilee punch, numbered 41, cast with gilded floral emblems of the realm thistle, clover, Tudor rose and daffodil and the Royal coat of arms, the interior housing an enamel jewelled, crown with red velvet, hallmarked underside, in the original presentation box, total weight 230gr, height 7.5 cm