In recording the border movement in the vertical plane, name the tracing produced by it:

Border movement is the mandibular movement at the limits dictated by anatomic structures as viewed in a given plane. Border movement recorded in: • Horizontal plane produces characteristic 'diamond tracing'. • Sagittal plane produces 'Beak tracing. • Vertical plane produces 'Shield tracing' • Combination of border movements in all three planes produces 'Envelop' of motion.