When I obtained this egg, I had the hardest time getting it apart initially. After days of different attempts of things they skittish damage it, I was finally successful. I knew something was inside, just not what it was.  Turns out it is a vintage set of rosary beads. The egg dies have a maker's mark, but I can't quite make it out.  Pictures of it included.  Very nice, old item being sold just like I obtained it.  Please see pics for further description and condition