Boucheron, a mariner rope demi-parure

Boucheron, a mariner rope demi-parure, comprising a bracelet of twisted rope linking, waisted with fluted 18ct gold rondels and joined with D-shackle gold links, marked Boucheron numbered 3140 with maker's mark for Andre Vassort, length 19cm, with a matching mariner rope and gold ring, of interlocking link design in 18ct gold, signed Boucheron and numbered 52146, rubbed maker's mark for Andre Vassort and French control mark, size O 1/2