One of our stops in Vienna was the Schatzkammer, or Imperial Treasury, now a museum. The Schatzkammer houses the former jewels and robes of office of the Habsburgs. Additionally, a large section of the collection was composed of clerical finery and ornate reliquaries. This piece caught my eye.
This, if I understand my clerical garments properly, is the back of a cope or pluviale, a cape that goes over the rest of the vestments. The embroidery is a combination of raise goldwork and bead embroidery.
The beads appear to be made out of coral. While gold and silver embroidery was fairly common in the collection, bead embroidery was not. If I had to guess, I would think that the beads were strung then couched onto the fabric, but I couldn't get close enough to say for sure.