A rosary about which we frequently receive inquiries is called the Anglican or Episcopalian Rosary (our apologies to those Anglicans or Episcopalians who don't wish to be referred to equivocally).
The rosary consists of 4 "septades," or 4 sets of seven beads each separated by a larger "cruciform" bead. Common crosses are the San Damiano or Celtic, and it does not have a center medal. There are two large beads between the cross and the center -- one cruciform and one invitatory. Bead and finding materials vary.