I am trying to fix an old rosary and I'm having trouble locating the right size and style to match the existing beads. below is a link to a photo in the hopes you may know where I could get this bead. It is dark brown wooden, about 4mm-5mm and carved with concentric circles.
http://gilbertmagazine.com/assets/images/beads.jpg
any help would be appreciated, this was my wife's grandfather's rosary.