Dentistry on stamps.
Loevy
H T
HT
Kowitz
A
A
D003813:Dentistry; D049673:History, 20th Century; D049690:History, Ancient; D006801:Humans; D009293:Opioid-Related Disorders / Q000266:history; D009892:Opium / Q000266:history*; D010154:Pakistan; D010678:Philately
D009892:Opium