Set of 3 Lovely and Unique French Buttons.  Buttons have been made out of pieces of real stone, fixed together with a black resin in a Marquetry or Pietra Dura style. Although designed on the same pattern, being made out of pieces of real stone, each button has its own unique appearance.  Based on pictures of the same buttons I found online, these appear to have been made in France by Nouveaute De Paris.  The buttons measure 1.25" in size.