Antique Art Deco solid silver yellow enamel and marcasite box

A small fine Art Deco rectangular box with canary yellow enamel over a very fine guilloche ground stepped thumb piece with enamel insert and a scrolling marcasite applique to the front of the hinged lid which opens to reveal a gilded interior and mirror fitted to the inner lid - marked for 935 silver and an unidentified makers mark - total weight 106grms - overall dimensions 74 x 47 x 9mm - c.1950 Switzerland