Dentists on stamps.
Shampo
Marc A
MA
Section of Scientific Publications, Mayo Clinic, Rochester Minnesota, USA.
Gibilisco
Joseph A
JA
D001083:Arabia; D005602:France; D006665:History of Dentistry; D049670:History, 17th Century; D049671:History, 18th Century; D049672:History, 19th Century; D049673:History, 20th Century; D049690:History, Ancient; D049691:History, Medieval; D008319:Malta; D010678:Philately; D014481:United States