A late 19th century French, gold, diamond and enamel bangle

A late 19th century French, gold, diamond and enamel bangle
The central shaped rectangular panel with old brilliant-cut diamond four stone line to a blue and white enamel line border and old-cut diamond surround and old-cut diamond panel shoulders with scroll detail, to an articulated panel bangle with blue and white enamel stripe decoration and rose-cut diamond line division, circa 1880, French marks