A fine Russian silver-gilt niello work and gem set spoon

A fine Russian silver-gilt niello work and gem set spoon,

possibly by Alexander Kordes, assay master Nikolay Dubrovin, Moscow 1834,

the reverse of the bowl with a firebird and foliate decoration on a matted background, the tapering handle set with turquoise cabochons, length 17.5cm, plus a set of six silver-gilt and niello work teaspoons, the reverse of the bowls with architectural scenes, and two further spoons, approx. weight 6.5oz.