Medical instruments.
D004864:Equipment and Supplies / Q000266:history*; D049669:History, 16th Century; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D013677:Medical Laboratory Science / Q000266:history*; D013523:Surgical Equipment / Q000266:history