A collection of enamel and paste buckles, late 19th/early 20th century

A collection of enamel and paste buckles, late 19th/early 20th century, comprising: three Art Nouveau buckles of floral design, applied with basse-taille enamel, largest 10.1 x 5.6cm; together with an Edwardian buckle designed as a pierced plaque set with colourless pastes; a fine buckle modelled as leaves of convolvulus set with colourless pastes; a buckle of palmette design set with violet and colourless pastes; and a rectangular buckle set with colourless pastes, largest 9.7 x 4.4cm