解剖模型 - アクリル樹脂、ステンレス鋼 - 1980-1990 - 歯

Orthodontic fixed or removable appliance made of clear acrylic resin with stainless steel wire components, comprising separate upper and lower jaws connected by a screw and guide system, designed to advance or retract the mandible to correct sagittal jaw relationships and occlusion, in good used condition with minor signs of aging and spots, dating from 1980–1990, weighing 222 g, 7 × 8 × 8 cm, in working order.